[Workshop-2011] Media summit at the Kernel Summit - was: Fwd: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
Thanks! Mauro
-------- Mensagem original -------- Assunto: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit Data: Fri, 13 Jul 2012 13:37:08 -0400 De: Theodore Ts'o tytso@mit.edu Para: James Bottomley James.Bottomley@HansenPartnership.com CC: ksummit-2012-discuss@lists.linux-foundation.org, linux-kernel linux-kernel@vger.kernel.org
On Wed, Jul 11, 2012 at 09:09:15AM +0100, James Bottomley wrote:
Hi All,
We have set aside the second day of the kernel summit (Tuesday 28 August) as mini-summit day. So far we have only the PCI mini summit on this day, so if you can think of other topics, please send them to the kernel summit discuss list:
ksummit-2012-discuss@lists.linux-foundation.org
Looking at the available rooms, we think we can run about four or five mini summits.
As an added incentive, mini summit organisers get to pick who they invite and all the people they pick will get an automatic invitation to the third day of the kernel summit (but not the core first day) and the evening events.
OK, so far I believe I've heard concrete suggestions from identified (or fairly well identified :-) stuckees willing to organize mini-summits for:
* ARM * Media * PCI * memcg
I may have missed some, so if people could send a message to the discuss list with [MINI-SUMMIT] in the subbject line and the name of the proposed mini-summit, that would be really helpful. Please indicate whether you are volunteering to help organize the proposed mini-summit, or identify someone you think can be volunteered. :-)
Things that we will be asking the mini-summit chars to determine, in addition to who should be given invites for Tuesday and Wednesday is an estimate of how much time you need, and a list of sub-topics (and who might lead the sub-topic discussion). We will be asking you to create a fairly well-defined schedule, with 30 and 60 minute slots, so that we can publish a schedule and so that people who might need to hop between mini-summits, have a chance to do so. So please start thinking about how long each of your sub-topics will need to be, and who might be needed for a particular sub-topic's discussion to be successful. There may be a number of developers, with fingers in multiple subsystem, where scheduling may become a bit of a challenge.
Thanks!!
- Ted _______________________________________________ Ksummit-2012-discuss mailing list Ksummit-2012-discuss@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/ksummit-2012-discuss
As we did in 2012, we're planning to do a media summit again at KS/2012.
Excellent.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'm interested. I like the idea of some cross-subsystem pollination, talking with the ALSA people for example ... and given that ARM is growing, I'd like to catch up and understand where ARM silicon is heading in terms of embedded video decoding and any support for hardware specific features we may / may not have / need.
... and of course, if we have anyone from Intel then we should be asking if/when their Intel Media SDK (hardware H264 encoding) is going to become a reality, or possibly kickstart that process.
Hi Steven,
On Tuesday 17 July 2012 13:49:43 Steven Toth wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
Excellent.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'm interested. I like the idea of some cross-subsystem pollination, talking with the ALSA people for example ...
That's very much in line with the KS/LPC spirit, I'd like to see that happen as well. We've been talking about media controller support in ALSA for ages :-)
and given that ARM is growing, I'd like to catch up and understand where ARM silicon is heading in terms of embedded video decoding and any support for hardware specific features we may / may not have / need.
Information about future directions is unfortunately usually private, but we can always ask. To be honest I sometimes feel like even SoC vendors themselves don't know where they're heading to :-) If only that, a presentation about the latest media-related hardware developments on ARM would be good to get everybody up to speed.
... and of course, if we have anyone from Intel then we should be asking if/when their Intel Media SDK (hardware H264 encoding) is going to become a reality, or possibly kickstart that process.
On Tue July 17 2012 19:30:53 Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd like to have 30 minutes to discuss a few V4L2 API ambiguities or just plain weirdness, just like I did last year. I'll make an RFC issues to discuss beforehand. I might also have a short presentation/demo of v4l2-compliance, as I believe more people need to know about that utility.
Regards,
Hans
Thanks! Mauro
-------- Mensagem original -------- Assunto: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit Data: Fri, 13 Jul 2012 13:37:08 -0400 De: Theodore Ts'o tytso@mit.edu Para: James Bottomley James.Bottomley@HansenPartnership.com CC: ksummit-2012-discuss@lists.linux-foundation.org, linux-kernel linux-kernel@vger.kernel.org
On Wed, Jul 11, 2012 at 09:09:15AM +0100, James Bottomley wrote:
Hi All,
We have set aside the second day of the kernel summit (Tuesday 28 August) as mini-summit day. So far we have only the PCI mini summit on this day, so if you can think of other topics, please send them to the kernel summit discuss list:
ksummit-2012-discuss@lists.linux-foundation.org
Looking at the available rooms, we think we can run about four or five mini summits.
As an added incentive, mini summit organisers get to pick who they invite and all the people they pick will get an automatic invitation to the third day of the kernel summit (but not the core first day) and the evening events.
OK, so far I believe I've heard concrete suggestions from identified (or fairly well identified :-) stuckees willing to organize mini-summits for:
- ARM
- Media
- PCI
- memcg
I may have missed some, so if people could send a message to the discuss list with [MINI-SUMMIT] in the subbject line and the name of the proposed mini-summit, that would be really helpful. Please indicate whether you are volunteering to help organize the proposed mini-summit, or identify someone you think can be volunteered. :-)
Things that we will be asking the mini-summit chars to determine, in addition to who should be given invites for Tuesday and Wednesday is an estimate of how much time you need, and a list of sub-topics (and who might lead the sub-topic discussion). We will be asking you to create a fairly well-defined schedule, with 30 and 60 minute slots, so that we can publish a schedule and so that people who might need to hop between mini-summits, have a chance to do so. So please start thinking about how long each of your sub-topics will need to be, and who might be needed for a particular sub-topic's discussion to be successful. There may be a number of developers, with fingers in multiple subsystem, where scheduling may become a bit of a challenge.
Thanks!!
- Ted
Ksummit-2012-discuss mailing list Ksummit-2012-discuss@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/ksummit-2012-discuss
-- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Hans,
On Tuesday 17 July 2012 21:32:22 Hans Verkuil wrote:
On Tue July 17 2012 19:30:53 Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd like to have 30 minutes to discuss a few V4L2 API ambiguities or just plain weirdness, just like I did last year. I'll make an RFC issues to discuss beforehand. I might also have a short presentation/demo of v4l2-compliance, as I believe more people need to know about that utility.
That's a good idea. On the topic of ambiguities, could you add VIDIOC_STREAMON and VIDIOC_STREAMOFF behaviour when the stream is already started/stopped respectively ?
On Tuesday 17 July 2012 21:41:18 Laurent Pinchart wrote:
Hi Hans,
On Tuesday 17 July 2012 21:32:22 Hans Verkuil wrote:
On Tue July 17 2012 19:30:53 Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd like to have 30 minutes to discuss a few V4L2 API ambiguities or just plain weirdness, just like I did last year. I'll make an RFC issues to discuss beforehand. I might also have a short presentation/demo of v4l2-compliance, as I believe more people need to know about that utility.
That's a good idea. On the topic of ambiguities, could you add VIDIOC_STREAMON and VIDIOC_STREAMOFF behaviour when the stream is already started/stopped respectively ?
Another ambiguity for your list: what should a driver return in TRY_FMT/S_FMT if the requested format is not supported (possible behaviours include returning the currently selected format or a default format).
On Wed, Jul 18, 2012 at 10:00 AM, Laurent Pinchart laurent.pinchart@ideasonboard.com wrote:
Another ambiguity for your list: what should a driver return in TRY_FMT/S_FMT if the requested format is not supported (possible behaviours include returning the currently selected format or a default format).
Whatever gets decided in terms of eliminating the ambiguity, we should definitely do a v4l2-compliance test for this. I've seen drivers in the past that return -EINVAL if the requested format is not supported (which resulted in various userland apps inventing their own workarounds over the years).
Devin
Hi Hans,
On 07/17/2012 09:32 PM, Hans Verkuil wrote:
On Tue July 17 2012 19:30:53 Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd like to have 30 minutes to discuss a few V4L2 API ambiguities or just plain weirdness, just like I did last year. I'll make an RFC issues to discuss beforehand. I might also have a short presentation/demo of v4l2-compliance, as I believe more people need to know about that utility.
What do you think about adding new M2M capability flag for memory-to-memory video devices ? I prepared an RFC patch for that already: http://www.mail-archive.com/linux-media@vger.kernel.org/msg48497.html
I think that at least qualifies to your list of V4L2 API ambiguities, even though we have device_caps now. Using ORed OUTPUT and CAPTURE flags implies all existing applications must check now both flags when they're trying to discover a video capture or video output device.
-- Regards, Sylwester
On Sat July 21 2012 14:16:22 Sylwester Nawrocki wrote:
Hi Hans,
On 07/17/2012 09:32 PM, Hans Verkuil wrote:
On Tue July 17 2012 19:30:53 Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd like to have 30 minutes to discuss a few V4L2 API ambiguities or just plain weirdness, just like I did last year. I'll make an RFC issues to discuss beforehand. I might also have a short presentation/demo of v4l2-compliance, as I believe more people need to know about that utility.
What do you think about adding new M2M capability flag for memory-to-memory video devices ? I prepared an RFC patch for that already: http://www.mail-archive.com/linux-media@vger.kernel.org/msg48497.html
I think that at least qualifies to your list of V4L2 API ambiguities, even though we have device_caps now. Using ORed OUTPUT and CAPTURE flags implies all existing applications must check now both flags when they're trying to discover a video capture or video output device.
I agree. I've added to my list (which is getting pretty long BTW, I will probably need more than 30 minutes).
When adding support for M2M devices to v4l2-compliance I also noticed that using CAPTURE+OUTPUT is a rather awkward way to signal this capability, so I agree to adding a special cap bit for that.
Regards,
Hans
Hi Hans,
On Tuesday 17 July 2012 21:32:22 Hans Verkuil wrote:
On Tue July 17 2012 19:30:53 Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd like to have 30 minutes to discuss a few V4L2 API ambiguities or just plain weirdness, just like I did last year.
Another ambiguity for your list, should video output drivers fill the sequence and timestamp fields when returning a v4l2_buffer from VIDIOC_DQBUF ?
Hi Mauro
On Tue, 17 Jul 2012, Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd love to attend, especially since, as you have seen, I've started doing some work on V4L DT bindings, but so far it very much looks like I won't be able to do so unfortunately.
Thanks Guennadi
Thanks! Mauro
-------- Mensagem original -------- Assunto: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit Data: Fri, 13 Jul 2012 13:37:08 -0400 De: Theodore Ts'o tytso@mit.edu Para: James Bottomley James.Bottomley@HansenPartnership.com CC: ksummit-2012-discuss@lists.linux-foundation.org, linux-kernel linux-kernel@vger.kernel.org
On Wed, Jul 11, 2012 at 09:09:15AM +0100, James Bottomley wrote:
Hi All,
We have set aside the second day of the kernel summit (Tuesday 28 August) as mini-summit day. So far we have only the PCI mini summit on this day, so if you can think of other topics, please send them to the kernel summit discuss list:
ksummit-2012-discuss@lists.linux-foundation.org
Looking at the available rooms, we think we can run about four or five mini summits.
As an added incentive, mini summit organisers get to pick who they invite and all the people they pick will get an automatic invitation to the third day of the kernel summit (but not the core first day) and the evening events.
OK, so far I believe I've heard concrete suggestions from identified (or fairly well identified :-) stuckees willing to organize mini-summits for:
- ARM
- Media
- PCI
- memcg
I may have missed some, so if people could send a message to the discuss list with [MINI-SUMMIT] in the subbject line and the name of the proposed mini-summit, that would be really helpful. Please indicate whether you are volunteering to help organize the proposed mini-summit, or identify someone you think can be volunteered. :-)
Things that we will be asking the mini-summit chars to determine, in addition to who should be given invites for Tuesday and Wednesday is an estimate of how much time you need, and a list of sub-topics (and who might lead the sub-topic discussion). We will be asking you to create a fairly well-defined schedule, with 30 and 60 minute slots, so that we can publish a schedule and so that people who might need to hop between mini-summits, have a chance to do so. So please start thinking about how long each of your sub-topics will need to be, and who might be needed for a particular sub-topic's discussion to be successful. There may be a number of developers, with fingers in multiple subsystem, where scheduling may become a bit of a challenge.
Thanks!!
- Ted
Ksummit-2012-discuss mailing list Ksummit-2012-discuss@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/ksummit-2012-discuss
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
--- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/
Hi Guennadi,
On Tuesday 17 July 2012 21:51:02 Guennadi Liakhovetski wrote:
On Tue, 17 Jul 2012, Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd love to attend, especially since, as you have seen, I've started doing some work on V4L DT bindings,
As you already know, that's a topic I'm very interested in. DT bindings will likely involve rethinking how the V4L2 core and V4L2 drivers instantiate subdevices, a media summit would have been a good occasion to discuss that. However, we probably need an RFC to start with.
but so far it very much looks like I won't be able to do so unfortunately.
:-/
Hi Laurent
On Wed, 18 Jul 2012, Laurent Pinchart wrote:
Hi Guennadi,
On Tuesday 17 July 2012 21:51:02 Guennadi Liakhovetski wrote:
On Tue, 17 Jul 2012, Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd love to attend, especially since, as you have seen, I've started doing some work on V4L DT bindings,
As you already know, that's a topic I'm very interested in. DT bindings will likely involve rethinking how the V4L2 core and V4L2 drivers instantiate subdevices, a media summit would have been a good occasion to discuss that. However, we probably need an RFC to start with.
You've certainly seen these two RFCs currently being discussed:
http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/50755 http://thread.gmane.org/gmane.linux.kernel.samsung-soc/11143
Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/
Hi Guennadi,
On Wednesday 18 July 2012 10:30:28 Guennadi Liakhovetski wrote:
On Wed, 18 Jul 2012, Laurent Pinchart wrote:
On Tuesday 17 July 2012 21:51:02 Guennadi Liakhovetski wrote:
On Tue, 17 Jul 2012, Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd love to attend, especially since, as you have seen, I've started doing some work on V4L DT bindings,
As you already know, that's a topic I'm very interested in. DT bindings will likely involve rethinking how the V4L2 core and V4L2 drivers instantiate subdevices, a media summit would have been a good occasion to discuss that. However, we probably need an RFC to start with.
You've certainly seen these two RFCs currently being discussed:
http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/50755
Sorry, I meant RFC patches. The devil (or part of it) will be in the details, solving race conditions and other similarly fun issues will require experimentation.
http://thread.gmane.org/gmane.linux.kernel.samsung-soc/11143
I still need to review that one :-)
Hi Mauro
On Tue, 17 Jul 2012, Guennadi Liakhovetski wrote:
Hi Mauro
On Tue, 17 Jul 2012, Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd love to attend, especially since, as you have seen, I've started doing some work on V4L DT bindings, but so far it very much looks like I won't be able to do so unfortunately.
Things change and sometimes also to the better:-) Looks like I'll be able to attend actually. So, please add me to the list.
Thanks Guennadi
Thanks! Mauro
-------- Mensagem original -------- Assunto: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit Data: Fri, 13 Jul 2012 13:37:08 -0400 De: Theodore Ts'o tytso@mit.edu Para: James Bottomley James.Bottomley@HansenPartnership.com CC: ksummit-2012-discuss@lists.linux-foundation.org, linux-kernel linux-kernel@vger.kernel.org
On Wed, Jul 11, 2012 at 09:09:15AM +0100, James Bottomley wrote:
Hi All,
We have set aside the second day of the kernel summit (Tuesday 28 August) as mini-summit day. So far we have only the PCI mini summit on this day, so if you can think of other topics, please send them to the kernel summit discuss list:
ksummit-2012-discuss@lists.linux-foundation.org
Looking at the available rooms, we think we can run about four or five mini summits.
As an added incentive, mini summit organisers get to pick who they invite and all the people they pick will get an automatic invitation to the third day of the kernel summit (but not the core first day) and the evening events.
OK, so far I believe I've heard concrete suggestions from identified (or fairly well identified :-) stuckees willing to organize mini-summits for:
- ARM
- Media
- PCI
- memcg
I may have missed some, so if people could send a message to the discuss list with [MINI-SUMMIT] in the subbject line and the name of the proposed mini-summit, that would be really helpful. Please indicate whether you are volunteering to help organize the proposed mini-summit, or identify someone you think can be volunteered. :-)
Things that we will be asking the mini-summit chars to determine, in addition to who should be given invites for Tuesday and Wednesday is an estimate of how much time you need, and a list of sub-topics (and who might lead the sub-topic discussion). We will be asking you to create a fairly well-defined schedule, with 30 and 60 minute slots, so that we can publish a schedule and so that people who might need to hop between mini-summits, have a chance to do so. So please start thinking about how long each of your sub-topics will need to be, and who might be needed for a particular sub-topic's discussion to be successful. There may be a number of developers, with fingers in multiple subsystem, where scheduling may become a bit of a challenge.
Thanks!!
- Ted
Ksummit-2012-discuss mailing list Ksummit-2012-discuss@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/ksummit-2012-discuss
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
--- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/
Apologies for my late reply -- I plan to attend the conference!!! I am looking to book everything today... I think I'm going to Barcelona as well -- will you guys go to both conferences?
On Sat, Jul 21, 2012 at 1:06 AM, Guennadi Liakhovetski g.liakhovetski@gmx.de wrote:
Hi Mauro
On Tue, 17 Jul 2012, Guennadi Liakhovetski wrote:
Hi Mauro
On Tue, 17 Jul 2012, Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd love to attend, especially since, as you have seen, I've started doing some work on V4L DT bindings, but so far it very much looks like I won't be able to do so unfortunately.
Things change and sometimes also to the better:-) Looks like I'll be able to attend actually. So, please add me to the list.
Thanks Guennadi
Thanks! Mauro
-------- Mensagem original -------- Assunto: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit Data: Fri, 13 Jul 2012 13:37:08 -0400 De: Theodore Ts'o tytso@mit.edu Para: James Bottomley James.Bottomley@HansenPartnership.com CC: ksummit-2012-discuss@lists.linux-foundation.org, linux-kernel linux-kernel@vger.kernel.org
On Wed, Jul 11, 2012 at 09:09:15AM +0100, James Bottomley wrote:
Hi All,
We have set aside the second day of the kernel summit (Tuesday 28 August) as mini-summit day. So far we have only the PCI mini summit on this day, so if you can think of other topics, please send them to the kernel summit discuss list:
ksummit-2012-discuss@lists.linux-foundation.org
Looking at the available rooms, we think we can run about four or five mini summits.
As an added incentive, mini summit organisers get to pick who they invite and all the people they pick will get an automatic invitation to the third day of the kernel summit (but not the core first day) and the evening events.
OK, so far I believe I've heard concrete suggestions from identified (or fairly well identified :-) stuckees willing to organize mini-summits for:
- ARM
- Media
- PCI
- memcg
I may have missed some, so if people could send a message to the discuss list with [MINI-SUMMIT] in the subbject line and the name of the proposed mini-summit, that would be really helpful. Please indicate whether you are volunteering to help organize the proposed mini-summit, or identify someone you think can be volunteered. :-)
Things that we will be asking the mini-summit chars to determine, in addition to who should be given invites for Tuesday and Wednesday is an estimate of how much time you need, and a list of sub-topics (and who might lead the sub-topic discussion). We will be asking you to create a fairly well-defined schedule, with 30 and 60 minute slots, so that we can publish a schedule and so that people who might need to hop between mini-summits, have a chance to do so. So please start thinking about how long each of your sub-topics will need to be, and who might be needed for a particular sub-topic's discussion to be successful. There may be a number of developers, with fingers in multiple subsystem, where scheduling may become a bit of a challenge.
Thanks!!
- Ted
Ksummit-2012-discuss mailing list Ksummit-2012-discuss@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/ksummit-2012-discuss
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
On Tue July 24 2012 19:40:27 Michael Krufky wrote:
Apologies for my late reply -- I plan to attend the conference!!!
Looking forward to seeing you again!
I am looking to book everything today... I think I'm going to Barcelona as well -- will you guys go to both conferences?
I'll be in Barcelona as well.
Regards,
Hans
On Sat, Jul 21, 2012 at 1:06 AM, Guennadi Liakhovetski
g.liakhovetski@gmx.de wrote:
Hi Mauro
On Tue, 17 Jul 2012, Guennadi Liakhovetski wrote:
Hi Mauro
On Tue, 17 Jul 2012, Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd love to attend, especially since, as you have seen, I've started doing some work on V4L DT bindings, but so far it very much looks like I won't be able to do so unfortunately.
Things change and sometimes also to the better:-) Looks like I'll be able to attend actually. So, please add me to the list.
Thanks Guennadi
Thanks! Mauro
-------- Mensagem original -------- Assunto: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit Data: Fri, 13 Jul 2012 13:37:08 -0400 De: Theodore Ts'o tytso@mit.edu Para: James Bottomley James.Bottomley@HansenPartnership.com CC: ksummit-2012-discuss@lists.linux-foundation.org, linux-kernel linux-kernel@vger.kernel.org
On Wed, Jul 11, 2012 at 09:09:15AM +0100, James Bottomley wrote:
Hi All,
We have set aside the second day of the kernel summit (Tuesday 28 August) as mini-summit day. So far we have only the PCI mini summit on this day, so if you can think of other topics, please send them to the kernel summit discuss list:
ksummit-2012-discuss@lists.linux-foundation.org
Looking at the available rooms, we think we can run about four or five mini summits.
As an added incentive, mini summit organisers get to pick who they invite and all the people they pick will get an automatic invitation to the third day of the kernel summit (but not the core first day) and the evening events.
OK, so far I believe I've heard concrete suggestions from identified (or fairly well identified :-) stuckees willing to organize mini-summits for:
- ARM
- Media
- PCI
- memcg
I may have missed some, so if people could send a message to the discuss list with [MINI-SUMMIT] in the subbject line and the name of the proposed mini-summit, that would be really helpful. Please indicate whether you are volunteering to help organize the proposed mini-summit, or identify someone you think can be volunteered. :-)
Things that we will be asking the mini-summit chars to determine, in addition to who should be given invites for Tuesday and Wednesday is an estimate of how much time you need, and a list of sub-topics (and who might lead the sub-topic discussion). We will be asking you to create a fairly well-defined schedule, with 30 and 60 minute slots, so that we can publish a schedule and so that people who might need to hop between mini-summits, have a chance to do so. So please start thinking about how long each of your sub-topics will need to be, and who might be needed for a particular sub-topic's discussion to be successful. There may be a number of developers, with fingers in multiple subsystem, where scheduling may become a bit of a challenge.
Thanks!!
- Ted
Ksummit-2012-discuss mailing list Ksummit-2012-discuss@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/ksummit-2012-discu ss
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
Em 24-07-2012 14:40, Michael Krufky escreveu:
Apologies for my late reply -- I plan to attend the conference!!!
Great!
I am looking to book everything today... I think I'm going to Barcelona as well -- will you guys go to both conferences?
Didn't planned yet to be in Barcelona.
Regards, Mauro
On Tue July 24 2012 19:40:27 Michael Krufky wrote:
Apologies for my late reply -- I plan to attend the conference!!! I am looking to book everything today... I think I'm going to Barcelona as well -- will you guys go to both conferences?
I plan on going to Barcelona as well.
Regards,
Hans
Em 21-07-2012 02:06, Guennadi Liakhovetski escreveu:
Hi Mauro
On Tue, 17 Jul 2012, Guennadi Liakhovetski wrote:
Hi Mauro
On Tue, 17 Jul 2012, Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd love to attend, especially since, as you have seen, I've started doing some work on V4L DT bindings, but so far it very much looks like I won't be able to do so unfortunately.
Things change and sometimes also to the better:-) Looks like I'll be able to attend actually. So, please add me to the list.
Great to know!
Regards, Mauro
Hi Mauro,
Can you please provide the schedule for the linuxTV discussions this time at San Diego? Which day will it be on? If you have a detailed schedule, please pass on. I am planning to be in only on that day as I cannot stay back more than that this time around.
Regards Naveen
-----Original Message----- From: workshop-2011-bounces@linuxtv.org [mailto:workshop-2011-bounces@linuxtv.org] On Behalf Of Mauro Carvalho Chehab Sent: Tuesday, July 31, 2012 10:23 AM To: Guennadi Liakhovetski Cc: workshop-2011@linuxtv.org; Linux Media Mailing List Subject: Re: [Workshop-2011] Media summit at the Kernel Summit - was: Fwd: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit
Em 21-07-2012 02:06, Guennadi Liakhovetski escreveu:
Hi Mauro
On Tue, 17 Jul 2012, Guennadi Liakhovetski wrote:
Hi Mauro
On Tue, 17 Jul 2012, Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
I'd love to attend, especially since, as you have seen, I've started doing some work on V4L DT bindings, but so far it very much looks like I won't be able to do so unfortunately.
Things change and sometimes also to the better:-) Looks like I'll be able to attend actually. So, please add me to the list.
Great to know!
Regards, Mauro
_______________________________________________ Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
Hi Naveen,
Em 22-08-2012 18:39, Naveen KRISHNAMURTHY escreveu:
Hi Mauro,
Can you please provide the schedule for the linuxTV discussions this time at San Diego? Which day will it be on? If you have a detailed schedule, please pass on. I am planning to be in only on that day as I cannot stay back more than that this time around.
The media workshop will be at Tuesday, August 28th, with the following agenda, for the ones that got the invitation:
morning: V4L2 API ambiguities + v4l2 compliance tool: 60 min Media Controller library: 30 min ALSA and V4L/Media Controller: 30 min ARM and needed features for V4L/DVB: 30 min - after lunch: SoC Vendors feedback – how to help them to go upstream: 45 min V4L2/DVB issues from userspace perspective: 45 min Android's V4L2 cam library: 30 min HDMI CEC: 30 min Synchronization, shared resource and optimizations: 30 min
On Wednesday, August 29th, there will be open plenary sections, together with the other Kernel Summit participants.
Regards, Mauro
Hi Mauro
On Fri, 24 Aug 2012, Mauro Carvalho Chehab wrote:
Hi Naveen,
Em 22-08-2012 18:39, Naveen KRISHNAMURTHY escreveu:
Hi Mauro,
Can you please provide the schedule for the linuxTV discussions this time at San Diego? Which day will it be on? If you have a detailed schedule, please pass on. I am planning to be in only on that day as I cannot stay back more than that this time around.
The media workshop will be at Tuesday, August 28th, with the following agenda, for the ones that got the invitation:
morning: V4L2 API ambiguities + v4l2 compliance tool: 60 min Media Controller library: 30 min ALSA and V4L/Media Controller: 30 min ARM and needed features for V4L/DVB: 30 min - after lunch: SoC Vendors feedback how to help them to go upstream: 45 min V4L2/DVB issues from userspace perspective: 45 min Android's V4L2 cam library: 30 min
Wow, this is interesting... Have I proposed this? :-) Or is anyone else working on an alternative solution?... I don't mind talking about this, if indeed my work is meant, just really cannot remember discussing taking this topic to the KS... I might have forgotten though... /me confused :-)
HDMI CEC: 30 min Synchronization, shared resource and optimizations: 30 min
What happened to the V4L DT topic? I believe, Sylwester and I have been discussing this pretty intensively over the last couple of weeks and, hopefully, are just about to submit an example V4L .dts fragment.
On Wednesday, August 29th, there will be open plenary sections, together with the other Kernel Summit participants.
Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/
Hi Guennadi,
On Friday 24 August 2012 14:11:58 Guennadi Liakhovetski wrote:
On Fri, 24 Aug 2012, Mauro Carvalho Chehab wrote:
Em 22-08-2012 18:39, Naveen KRISHNAMURTHY escreveu:
Hi Mauro,
Can you please provide the schedule for the linuxTV discussions this time at San Diego? Which day will it be on? If you have a detailed schedule, please pass on. I am planning to be in only on that day as I cannot stay back more than that this time around.>
The media workshop will be at Tuesday, August 28th, with the following agenda, for the ones that got the invitation: morning: V4L2 API ambiguities + v4l2 compliance tool: 60 min Media Controller library: 30 min ALSA and V4L/Media Controller: 30 min ARM and needed features for V4L/DVB: 30 min
- after lunch: SoC Vendors feedback how to help them to go upstream: 45 min V4L2/DVB issues from userspace perspective: 45 min Android's V4L2 cam library: 30 minWow, this is interesting... Have I proposed this? :-) Or is anyone else working on an alternative solution?... I don't mind talking about this, if indeed my work is meant, just really cannot remember discussing taking this topic to the KS... I might have forgotten though... /me confused :-)
HDMI CEC: 30 min Synchronization, shared resource and optimizations: 30 minWhat happened to the V4L DT topic? I believe, Sylwester and I have been discussing this pretty intensively over the last couple of weeks and, hopefully, are just about to submit an example V4L .dts fragment.
I believe it was deemed to be a too complex topic that would take too much time to fit in the schedule. I will be free on Monday to discuss this, should we organize a (informal) meeting ?
On Wednesday, August 29th, there will be open plenary sections, together with the other Kernel Summit participants.
Hi Laurent
On Fri, 24 Aug 2012, Laurent Pinchart wrote:
Hi Guennadi,
On Friday 24 August 2012 14:11:58 Guennadi Liakhovetski wrote:
On Fri, 24 Aug 2012, Mauro Carvalho Chehab wrote:
Em 22-08-2012 18:39, Naveen KRISHNAMURTHY escreveu:
Hi Mauro,
Can you please provide the schedule for the linuxTV discussions this time at San Diego? Which day will it be on? If you have a detailed schedule, please pass on. I am planning to be in only on that day as I cannot stay back more than that this time around.>
The media workshop will be at Tuesday, August 28th, with the following agenda, for the ones that got the invitation: morning: V4L2 API ambiguities + v4l2 compliance tool: 60 min Media Controller library: 30 min ALSA and V4L/Media Controller: 30 min ARM and needed features for V4L/DVB: 30 min
- after lunch: SoC Vendors feedback how to help them to go upstream: 45 min V4L2/DVB issues from userspace perspective: 45 min Android's V4L2 cam library: 30 minWow, this is interesting... Have I proposed this? :-) Or is anyone else working on an alternative solution?... I don't mind talking about this, if indeed my work is meant, just really cannot remember discussing taking this topic to the KS... I might have forgotten though... /me confused :-)
HDMI CEC: 30 min Synchronization, shared resource and optimizations: 30 minWhat happened to the V4L DT topic? I believe, Sylwester and I have been discussing this pretty intensively over the last couple of weeks and, hopefully, are just about to submit an example V4L .dts fragment.
I believe it was deemed to be a too complex topic that would take too much time to fit in the schedule. I will be free on Monday to discuss this, should we organize a (informal) meeting ?
Sure, everyone is most welcome to join me on the plane;-) I should arrive to the airport at 18:15, so, if anyone would like to talk to me after a 13.5-hour trip - we can try that:-)
On Wednesday, August 29th, there will be open plenary sections, together with the other Kernel Summit participants.
Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/
Em 24-08-2012 09:41, Guennadi Liakhovetski escreveu:
Hi Laurent
On Fri, 24 Aug 2012, Laurent Pinchart wrote:
Hi Guennadi,
On Friday 24 August 2012 14:11:58 Guennadi Liakhovetski wrote:
On Fri, 24 Aug 2012, Mauro Carvalho Chehab wrote:
Em 22-08-2012 18:39, Naveen KRISHNAMURTHY escreveu:
Hi Mauro,
Can you please provide the schedule for the linuxTV discussions this time at San Diego? Which day will it be on? If you have a detailed schedule, please pass on. I am planning to be in only on that day as I cannot stay back more than that this time around.>
The media workshop will be at Tuesday, August 28th, with the following agenda, for the ones that got the invitation: morning: V4L2 API ambiguities + v4l2 compliance tool: 60 min Media Controller library: 30 min ALSA and V4L/Media Controller: 30 min ARM and needed features for V4L/DVB: 30 min
- after lunch: SoC Vendors feedback – how to help them to go upstream: 45 min V4L2/DVB issues from userspace perspective: 45 min Android's V4L2 cam library: 30 minWow, this is interesting... Have I proposed this? :-) Or is anyone else working on an alternative solution?... I don't mind talking about this, if indeed my work is meant, just really cannot remember discussing taking this topic to the KS... I might have forgotten though... /me confused :-)
It was proposed by someone ;) I think you said you would be giving this talk, if I'm not mistaken, on the discussions we had. So, we're counting on you ;)
HDMI CEC: 30 min Synchronization, shared resource and optimizations: 30 minWhat happened to the V4L DT topic? I believe, Sylwester and I have been discussing this pretty intensively over the last couple of weeks and, hopefully, are just about to submit an example V4L .dts fragment.
There was some discussions about having a DT summit or BoF there, so it was left away from the media workshop, due to the lack of time for all panels there (and since this is really a DT-specific theme). I didn't track if the DT workshop got actually scheduled or not.
I believe it was deemed to be a too complex topic that would take too much time to fit in the schedule. I will be free on Monday to discuss this, should we organize a (informal) meeting ?
Sure, everyone is most welcome to join me on the plane;-) I should arrive to the airport at 18:15, so, if anyone would like to talk to me after a 13.5-hour trip - we can try that:-)
I'm sure you'll be able to find some time along the week to do such meeting. In my case, I don't feel I need to be on such discussions, as this is not directly related to the media API, and such patches go though other trees (or though media tree, but with DT maintainers acks). Yet, I'd like to know about the end results of such discussions, in order to keep track of it.
Regards, Mauro
On Fri, 24 Aug 2012, Mauro Carvalho Chehab wrote:
Em 24-08-2012 09:41, Guennadi Liakhovetski escreveu:
Hi Laurent
On Fri, 24 Aug 2012, Laurent Pinchart wrote:
Hi Guennadi,
On Friday 24 August 2012 14:11:58 Guennadi Liakhovetski wrote:
On Fri, 24 Aug 2012, Mauro Carvalho Chehab wrote:
Em 22-08-2012 18:39, Naveen KRISHNAMURTHY escreveu:
Hi Mauro,
Can you please provide the schedule for the linuxTV discussions this time at San Diego? Which day will it be on? If you have a detailed schedule, please pass on. I am planning to be in only on that day as I cannot stay back more than that this time around.>
The media workshop will be at Tuesday, August 28th, with the following agenda, for the ones that got the invitation: morning: V4L2 API ambiguities + v4l2 compliance tool: 60 min Media Controller library: 30 min ALSA and V4L/Media Controller: 30 min ARM and needed features for V4L/DVB: 30 min
- after lunch: SoC Vendors feedback – how to help them to go upstream: 45 min V4L2/DVB issues from userspace perspective: 45 min Android's V4L2 cam library: 30 minWow, this is interesting... Have I proposed this? :-) Or is anyone else working on an alternative solution?... I don't mind talking about this, if indeed my work is meant, just really cannot remember discussing taking this topic to the KS... I might have forgotten though... /me confused :-)
It was proposed by someone ;) I think you said you would be giving this talk, if I'm not mistaken, on the discussions we had. So, we're counting on you ;)
Ok, np, I'll make something up ;-)
HDMI CEC: 30 min Synchronization, shared resource and optimizations: 30 minWhat happened to the V4L DT topic? I believe, Sylwester and I have been discussing this pretty intensively over the last couple of weeks and, hopefully, are just about to submit an example V4L .dts fragment.
There was some discussions about having a DT summit or BoF there, so it was left away from the media workshop, due to the lack of time for all panels there (and since this is really a DT-specific theme). I didn't track if the DT workshop got actually scheduled or not.
I believe it was deemed to be a too complex topic that would take too much time to fit in the schedule. I will be free on Monday to discuss this, should we organize a (informal) meeting ?
Sure, everyone is most welcome to join me on the plane;-) I should arrive to the airport at 18:15, so, if anyone would like to talk to me after a 13.5-hour trip - we can try that:-)
I'm sure you'll be able to find some time along the week to do such meeting. In my case, I don't feel I need to be on such discussions, as this is not directly related to the media API, and such patches go though other trees (or though media tree, but with DT maintainers acks). Yet, I'd like to know about the end results of such discussions, in order to keep track of it.
ok, we'll see what becomes possible.
Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/
Hi Mauro,
On Tuesday 17 July 2012 14:30:53 Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
Great news!
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
Sakari and I will spend time on the long-awaited media controller library in a couple of weeks, I hope to have results to present during the summit.
Depending on the audience, I would also be interested in getting feedback from SoC vendors who are not (yet) active in the V4L2 community on our approach and how we could best help them. This could include discussions about Android, as I believe we need to push V4L2 on that platform. Guennadi's recent work on an Android V4L2 camera library is a good first step in that direction.
Count me in when we have this discussion as this is something we too are working on.
Rgds, Palash
-----Original Message----- From: workshop-2011-bounces@linuxtv.org [mailto:workshop-2011-bounces@linuxtv.org] On Behalf Of Laurent Pinchart Sent: Tuesday, July 17, 2012 3:47 PM To: workshop-2011@linuxtv.org Cc: Linux Media Mailing List Subject: Re: [Workshop-2011] Media summit at the Kernel Summit - was: Fwd: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit
Hi Mauro,
On Tuesday 17 July 2012 14:30:53 Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
Great news!
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
Sakari and I will spend time on the long-awaited media controller library in a couple of weeks, I hope to have results to present during the summit.
Depending on the audience, I would also be interested in getting feedback from SoC vendors who are not (yet) active in the V4L2 community on our approach and how we could best help them. This could include discussions about Android, as I believe we need to push V4L2 on that platform. Guennadi's recent work on an Android V4L2 camera library is a good first step in that direction.
Hi Palash,
On Tuesday 17 July 2012 15:57:18 Palash Bandyopadhyay wrote:
Count me in when we have this discussion as this is something we too are working on.
Which one, the media controller library, or Android ?
On Tuesday, July 17, 2012 3:47 PM Laurent Pinchart wrote:
On Tuesday 17 July 2012 14:30:53 Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
Great news!
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
Sakari and I will spend time on the long-awaited media controller library in a couple of weeks, I hope to have results to present during the summit.
Depending on the audience, I would also be interested in getting feedback from SoC vendors who are not (yet) active in the V4L2 community on our approach and how we could best help them. This could include discussions about Android, as I believe we need to push V4L2 on that platform. Guennadi's recent work on an Android V4L2 camera library is a good first step in that direction.
Android
-palash
-----Original Message----- From: Laurent Pinchart [mailto:laurent.pinchart@ideasonboard.com] Sent: Wednesday, July 18, 2012 4:37 AM To: Palash Bandyopadhyay Cc: workshop-2011@linuxtv.org; Linux Media Mailing List Subject: Re: [Workshop-2011] Media summit at the Kernel Summit - was: Fwd: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit
Hi Palash,
On Tuesday 17 July 2012 15:57:18 Palash Bandyopadhyay wrote:
Count me in when we have this discussion as this is something we too are working on.
Which one, the media controller library, or Android ?
On Tuesday, July 17, 2012 3:47 PM Laurent Pinchart wrote:
On Tuesday 17 July 2012 14:30:53 Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
Great news!
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
Sakari and I will spend time on the long-awaited media controller library in a couple of weeks, I hope to have results to present during the summit.
Depending on the audience, I would also be interested in getting feedback from SoC vendors who are not (yet) active in the V4L2 community on our approach and how we could best help them. This could include discussions about Android, as I believe we need to push V4L2 on that platform. Guennadi's recent work on an Android V4L2 camera library is a good first step in that direction.
-- Regards,
Laurent Pinchart
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Em 17-07-2012 19:46, Laurent Pinchart escreveu:
Hi Mauro,
On Tuesday 17 July 2012 14:30:53 Mauro Carvalho Chehab wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
Great news!
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
Sakari and I will spend time on the long-awaited media controller library in a couple of weeks, I hope to have results to present during the summit.
Great!
Depending on the audience, I would also be interested in getting feedback from SoC vendors who are not (yet) active in the V4L2 community on our approach and how we could best help them. This could include discussions about Android, as I believe we need to push V4L2 on that platform. Guennadi's recent work on an Android V4L2 camera library is a good first step in that direction.
Excelent idea. I'll be adding it at the topics proposal summary.
Thanks, Mauro
Hi Mauro, Great news, please count me in. We are currently building a new ChromeOS graphics/media stack based on V4L2, vb2, dmabuf, DRM and GL. Synchronization/shared resource usage is one important topic for discussion, as well as, depending on interest, perhaps optimizations like CPU cache maintenance, dmabuf hint/caching sglists, sharing mappings between drivers, etc. Perhaps others would also have something to add to this list.
Thanks! Pawel Osciak
On Tue, Jul 17, 2012 at 10:30 AM, Mauro Carvalho Chehab mchehab@redhat.com wrote:
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
Thanks! Mauro
-------- Mensagem original -------- Assunto: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit Data: Fri, 13 Jul 2012 13:37:08 -0400 De: Theodore Ts'o tytso@mit.edu Para: James Bottomley James.Bottomley@HansenPartnership.com CC: ksummit-2012-discuss@lists.linux-foundation.org, linux-kernel linux-kernel@vger.kernel.org
On Wed, Jul 11, 2012 at 09:09:15AM +0100, James Bottomley wrote:
Hi All,
We have set aside the second day of the kernel summit (Tuesday 28 August) as mini-summit day. So far we have only the PCI mini summit on this day, so if you can think of other topics, please send them to the kernel summit discuss list:
ksummit-2012-discuss@lists.linux-foundation.org
Looking at the available rooms, we think we can run about four or five mini summits.
As an added incentive, mini summit organisers get to pick who they invite and all the people they pick will get an automatic invitation to the third day of the kernel summit (but not the core first day) and the evening events.
OK, so far I believe I've heard concrete suggestions from identified (or fairly well identified :-) stuckees willing to organize mini-summits for:
- ARM
- Media
- PCI
- memcg
I may have missed some, so if people could send a message to the discuss list with [MINI-SUMMIT] in the subbject line and the name of the proposed mini-summit, that would be really helpful. Please indicate whether you are volunteering to help organize the proposed mini-summit, or identify someone you think can be volunteered. :-)
Things that we will be asking the mini-summit chars to determine, in addition to who should be given invites for Tuesday and Wednesday is an estimate of how much time you need, and a list of sub-topics (and who might lead the sub-topic discussion). We will be asking you to create a fairly well-defined schedule, with 30 and 60 minute slots, so that we can publish a schedule and so that people who might need to hop between mini-summits, have a chance to do so. So please start thinking about how long each of your sub-topics will need to be, and who might be needed for a particular sub-topic's discussion to be successful. There may be a number of developers, with fingers in multiple subsystem, where scheduling may become a bit of a challenge.
Thanks!!
- Ted
Ksummit-2012-discuss mailing list Ksummit-2012-discuss@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/ksummit-2012-discuss
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Hello,
Le mardi 17 juillet 2012 20:30:53 Mauro Carvalho Chehab, vous avez écrit :
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
If it's of interest to anyone, I could probably present a bunch of issues with V4L2 and DVB from userspace perspective.
Regards,
On Tue, Jul 24, 2012 at 4:05 PM, Rémi Denis-Courmont remi@remlab.net wrote:
If it's of interest to anyone, I could probably present a bunch of issues with V4L2 and DVB from userspace perspective.
Remi,
I would strongly be in favor of this. One thing that we get far to little of is feedback from actual userland developers making use of the V4L and DVB interfaces (aside from the SoC vendors, which is a completely different target audience than the traditional V4L and DVB consumers)
Devin
Devin Heitmueller dheitmueller@kernellabs.com wrote:
On Tue, Jul 24, 2012 at 4:05 PM, Rémi Denis-Courmont remi@remlab.net wrote:
If it's of interest to anyone, I could probably present a bunch of
issues with
V4L2 and DVB from userspace perspective.
Remi,
I would strongly be in favor of this. One thing that we get far to little of is feedback from actual userland developers making use of the V4L and DVB interfaces (aside from the SoC vendors, which is a completely different target audience than the traditional V4L and DVB consumers)
Devin
-- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Ditto. Input from user application developers is something that kernel developers need and value greatly.
Note, that I will not be at the workshop of Plumbers this year. :(
Regards, Andy
Le mardi 24 juillet 2012 23:31:42 Andy Walls, vous avez écrit :
I would strongly be in favor of this. One thing that we get far to little of is feedback from actual userland developers making use of the V4L and DVB interfaces (aside from the SoC vendors, which is a completely different target audience than the traditional V4L and DVB consumers)
Devin
Ditto. Input from user application developers is something that kernel developers need and value greatly.
Note, that I will not be at the workshop of Plumbers this year. :(
Is the media summit timed with LPC or the kernel summit? If I come, I have to leave on Thursday to catch the VideoLAN conference in Paris on the next week- end...
On Tue July 24 2012 22:37:35 Rémi Denis-Courmont wrote:
Le mardi 24 juillet 2012 23:31:42 Andy Walls, vous avez écrit :
I would strongly be in favor of this. One thing that we get far to little of is feedback from actual userland developers making use of the V4L and DVB interfaces (aside from the SoC vendors, which is a completely different target audience than the traditional V4L and DVB consumers)
Devin
Ditto. Input from user application developers is something that kernel developers need and value greatly.
Note, that I will not be at the workshop of Plumbers this year. :(
Is the media summit timed with LPC or the kernel summit? If I come, I have to leave on Thursday to catch the VideoLAN conference in Paris on the next week- end...
It's timed with the kernel summit and it will be on Tuesday. So you should have ample time.
And feedback to us from a user perspective would be very useful. As others have mentioned, we do not see that often enough.
Regards,
Hans
On Wed, 25 Jul 2012 08:21:05 +0200, Hans Verkuil hverkuil@xs4all.nl
wrote:
On Tue July 24 2012 22:37:35 Rémi Denis-Courmont wrote:
Le mardi 24 juillet 2012 23:31:42 Andy Walls, vous avez écrit :
I would strongly be in favor of this. One thing that we get far to
little of is feedback from actual userland developers making use of
the V4L and DVB interfaces (aside from the SoC vendors, which is a
completely different target audience than the traditional V4L and
DVB
consumers)
Devin
Ditto. Input from user application developers is something that
kernel
developers need and value greatly.
Note, that I will not be at the workshop of Plumbers this year. :(
Is the media summit timed with LPC or the kernel summit? If I come, I
have
to leave on Thursday to catch the VideoLAN conference in Paris on the
next
week- end...
It's timed with the kernel summit and it will be on Tuesday. So you
should
have ample time.
Oh? Is this firm yet? There's some pressure to book flights early here...
On Thu 26 July 2012 11:32:56 Rémi Denis-Courmont wrote:
On Wed, 25 Jul 2012 08:21:05 +0200, Hans Verkuil hverkuil@xs4all.nl wrote:
On Tue July 24 2012 22:37:35 Rémi Denis-Courmont wrote:
Le mardi 24 juillet 2012 23:31:42 Andy Walls, vous avez écrit :
I would strongly be in favor of this. One thing that we get far to little of is feedback from actual userland developers making use of the V4L and DVB interfaces (aside from the SoC vendors, which is a completely different target audience than the traditional V4L and
DVB
consumers)
Devin
Ditto. Input from user application developers is something that kernel developers need and value greatly.
Note, that I will not be at the workshop of Plumbers this year. :(
Is the media summit timed with LPC or the kernel summit? If I come, I have to leave on Thursday to catch the VideoLAN conference in Paris on the next week- end...
It's timed with the kernel summit and it will be on Tuesday. So you
should
have ample time.
Oh? Is this firm yet? There's some pressure to book flights early here...
Yes, that's firm.
Regards,
Hans
On Thu, 26 Jul 2012 11:42:15 +0200, Hans Verkuil hverkuil@xs4all.nl
wrote:
It's timed with the kernel summit and it will be on Tuesday. So you
should have ample time.
Oh? Is this firm yet? There's some pressure to book flights early
here...
Yes, that's firm.
Sorry again... Does that mean nothing happens on Sunday and Monday?
Also, when do get confirmed invitations to attend the media summit?
On Thu 26 July 2012 14:05:51 Rémi Denis-Courmont wrote:
On Thu, 26 Jul 2012 11:42:15 +0200, Hans Verkuil hverkuil@xs4all.nl wrote:
It's timed with the kernel summit and it will be on Tuesday. So you should have ample time.
Oh? Is this firm yet? There's some pressure to book flights early
here...
Yes, that's firm.
Sorry again... Does that mean nothing happens on Sunday and Monday?
To my knowledge there is nothing planned with respect to V4L/DVB.
Monday is the closed session of the kernel summit. All workshops of the various subsystems are scheduled on Tuesday.
That doesn't mean nothing happens: I'll be attending the gstreamer conference on Monday myself.
Also, when do get confirmed invitations to attend the media summit?
I'll make sure you'll be invited. I'm not even sure you need an official invite for the workshop. I know that anyone who also attends the LPC can get an invite for the workshops on Tuesday for free.
Anyway, I'll put your name on the list and make sure that Mauro will pass that on to the organizers once he's back from vacation.
Regards,
Hans
Hi Rémi,
On Thursday 26 July 2012 14:05:51 Rémi Denis-Courmont wrote:
On Thu, 26 Jul 2012 11:42:15 +0200, Hans Verkuil wrote:
It's timed with the kernel summit and it will be on Tuesday. So you
should have ample time.
Oh? Is this firm yet? There's some pressure to book flights early
here...
Yes, that's firm.
Sorry again... Does that mean nothing happens on Sunday and Monday?
"Nothing" is a bit too strong of a word :-)
Several developers will already be present on Sunday and Monday, so it could be possible to already hold meetings (although getting a room might not be easy). You can also attend the GStreamer Conference on Monday if you wish.
Also, when do get confirmed invitations to attend the media summit?
I expect Mauro to send them when he will be back from holidays.
On 07/24/2012 11:11 PM, Devin Heitmueller wrote:
On Tue, Jul 24, 2012 at 4:05 PM, Rémi Denis-Courmont remi@remlab.net wrote:
If it's of interest to anyone, I could probably present a bunch of issues with V4L2 and DVB from userspace perspective.
Remi,
I would strongly be in favor of this. One thing that we get far to little of is feedback from actual userland developers making use of the V4L and DVB interfaces (aside from the SoC vendors, which is a completely different target audience than the traditional V4L and DVB consumers)
I wonder if it is wise to merge both DVB and V4L2 APIs, add needed DVB stuff to V4L2 API and finally remove whole DVB API. V4L2 API seems to be much more feature rich, developed more actively and maybe has less problems than current DVB API.
regards Antti
On Tue, Jul 24, 2012 at 5:50 PM, Antti Palosaari crope@iki.fi wrote:
On 07/24/2012 11:11 PM, Devin Heitmueller wrote:
On Tue, Jul 24, 2012 at 4:05 PM, Rémi Denis-Courmont remi@remlab.net wrote:
If it's of interest to anyone, I could probably present a bunch of issues with V4L2 and DVB from userspace perspective.
Remi,
I would strongly be in favor of this. One thing that we get far to little of is feedback from actual userland developers making use of the V4L and DVB interfaces (aside from the SoC vendors, which is a completely different target audience than the traditional V4L and DVB consumers)
I wonder if it is wise to merge both DVB and V4L2 APIs, add needed DVB stuff to V4L2 API and finally remove whole DVB API. V4L2 API seems to be much more feature rich, developed more actively and maybe has less problems than current DVB API.
lets never do that.
On Tue, Jul 24, 2012 at 5:50 PM, Antti Palosaari crope@iki.fi wrote:
I wonder if it is wise to merge both DVB and V4L2 APIs, add needed DVB stuff to V4L2 API and finally remove whole DVB API. V4L2 API seems to be much more feature rich, developed more actively and maybe has less problems than current DVB API.
This may just be a case of "the grass is always greener on the other side of the fence". The V4L2 subsystem has more than it's share of problems - you just don't see them since you don't work with that code on a regular basis.
Devin
Hello Mauro,
We would like to participate in the media summit at San Diego. Can you please reserve 2 seats for us. If possible we would like to reserve a session to present how we have used the linuxTV to model our devices and support our use cases. We will also consolidate and pass on a list of questions related to spec ambiguities and hope to get it clarified during the summit!
Can you please confirm back on the feasibility of our attendance?
Regards Naveen Krishnamurthy ST Microelectronics.
-----Original Message----- From: workshop-2011-bounces@linuxtv.org [mailto:workshop-2011-bounces@linuxtv.org] On Behalf Of Mauro Carvalho Chehab Sent: Tuesday, July 17, 2012 10:31 AM To: Linux Media Mailing List; workshop-2011@linuxtv.org Subject: [Workshop-2011] Media summit at the Kernel Summit - was: Fwd: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
Thanks! Mauro
-------- Mensagem original -------- Assunto: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit Data: Fri, 13 Jul 2012 13:37:08 -0400 De: Theodore Ts'o tytso@mit.edu Para: James Bottomley James.Bottomley@HansenPartnership.com CC: ksummit-2012-discuss@lists.linux-foundation.org, linux-kernel linux-kernel@vger.kernel.org
On Wed, Jul 11, 2012 at 09:09:15AM +0100, James Bottomley wrote:
Hi All,
We have set aside the second day of the kernel summit (Tuesday 28 August) as mini-summit day. So far we have only the PCI mini summit on this day, so if you can think of other topics, please send them to the kernel summit discuss list:
ksummit-2012-discuss@lists.linux-foundation.org
Looking at the available rooms, we think we can run about four or five mini summits.
As an added incentive, mini summit organisers get to pick who they invite and all the people they pick will get an automatic invitation to the third day of the kernel summit (but not the core first day) and the evening events.
OK, so far I believe I've heard concrete suggestions from identified (or fairly well identified :-) stuckees willing to organize mini-summits for:
* ARM * Media * PCI * memcg
I may have missed some, so if people could send a message to the discuss list with [MINI-SUMMIT] in the subbject line and the name of the proposed mini-summit, that would be really helpful. Please indicate whether you are volunteering to help organize the proposed mini-summit, or identify someone you think can be volunteered. :-)
Things that we will be asking the mini-summit chars to determine, in addition to who should be given invites for Tuesday and Wednesday is an estimate of how much time you need, and a list of sub-topics (and who might lead the sub-topic discussion). We will be asking you to create a fairly well-defined schedule, with 30 and 60 minute slots, so that we can publish a schedule and so that people who might need to hop between mini-summits, have a chance to do so. So please start thinking about how long each of your sub-topics will need to be, and who might be needed for a particular sub-topic's discussion to be successful. There may be a number of developers, with fingers in multiple subsystem, where scheduling may become a bit of a challenge.
Thanks!!
- Ted _______________________________________________ Ksummit-2012-discuss mailing list Ksummit-2012-discuss@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/ksummit-2012-discuss
_______________________________________________ Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
Hi Naveen,
On Wed July 25 2012 02:17:25 Naveen KRISHNAMURTHY wrote:
Hello Mauro,
We would like to participate in the media summit at San Diego. Can you please reserve 2 seats for us. If possible we would like to reserve a session to present how we have used the linuxTV to model our devices and support our use cases. We will also consolidate and pass on a list of questions related to spec ambiguities and hope to get it clarified during the summit!
Please pass that list on to me. I'm doing the section on V4L2 spec ambiguities etc., so I'd like to merge all just questions in one session.
Note that my session only deals with V4L2 issues. For DVB issues someone else would have to coordinate that.
Regards,
Hans
Can you please confirm back on the feasibility of our attendance?
Regards Naveen Krishnamurthy ST Microelectronics.
-----Original Message----- From: workshop-2011-bounces@linuxtv.org [mailto:workshop-2011-bounces@linuxtv.org] On Behalf Of Mauro Carvalho Chehab Sent: Tuesday, July 17, 2012 10:31 AM To: Linux Media Mailing List; workshop-2011@linuxtv.org Subject: [Workshop-2011] Media summit at the Kernel Summit - was: Fwd: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
Thanks! Mauro
-------- Mensagem original -------- Assunto: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit Data: Fri, 13 Jul 2012 13:37:08 -0400 De: Theodore Ts'o tytso@mit.edu Para: James Bottomley James.Bottomley@HansenPartnership.com CC: ksummit-2012-discuss@lists.linux-foundation.org, linux-kernel linux-kernel@vger.kernel.org
On Wed, Jul 11, 2012 at 09:09:15AM +0100, James Bottomley wrote:
Hi All,
We have set aside the second day of the kernel summit (Tuesday 28 August) as mini-summit day. So far we have only the PCI mini summit on this day, so if you can think of other topics, please send them to the kernel summit discuss list:
ksummit-2012-discuss@lists.linux-foundation.org
Looking at the available rooms, we think we can run about four or five mini summits.
As an added incentive, mini summit organisers get to pick who they invite and all the people they pick will get an automatic invitation to the third day of the kernel summit (but not the core first day) and the evening events.
OK, so far I believe I've heard concrete suggestions from identified (or fairly well identified :-) stuckees willing to organize mini-summits for:
- ARM
- Media
- PCI
- memcg
I may have missed some, so if people could send a message to the discuss list with [MINI-SUMMIT] in the subbject line and the name of the proposed mini-summit, that would be really helpful. Please indicate whether you are volunteering to help organize the proposed mini-summit, or identify someone you think can be volunteered. :-)
Things that we will be asking the mini-summit chars to determine, in addition to who should be given invites for Tuesday and Wednesday is an estimate of how much time you need, and a list of sub-topics (and who might lead the sub-topic discussion). We will be asking you to create a fairly well-defined schedule, with 30 and 60 minute slots, so that we can publish a schedule and so that people who might need to hop between mini-summits, have a chance to do so. So please start thinking about how long each of your sub-topics will need to be, and who might be needed for a particular sub-topic's discussion to be successful. There may be a number of developers, with fingers in multiple subsystem, where scheduling may become a bit of a challenge.
Thanks!!
- Ted
Ksummit-2012-discuss mailing list Ksummit-2012-discuss@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/ksummit-2012-discuss
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
Sure Hans, we will collate the spec ambiguities and pass it on to you before the meeting for you.
Regards Naveen
-----Original Message----- From: Hans Verkuil [mailto:hverkuil@xs4all.nl] Sent: Tuesday, July 24, 2012 11:18 PM To: workshop-2011@linuxtv.org Cc: Naveen KRISHNAMURTHY; Mauro Carvalho Chehab; Linux Media Mailing List Subject: Re: [Workshop-2011] Media summit at the Kernel Summit - was: Fwd: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit
Hi Naveen,
On Wed July 25 2012 02:17:25 Naveen KRISHNAMURTHY wrote:
Hello Mauro,
We would like to participate in the media summit at San Diego. Can you please reserve 2 seats for us. If possible we would like to reserve a session to present how we have used the linuxTV to model our devices and support our use cases. We will also consolidate and pass on a list of questions related to spec ambiguities and hope to get it clarified during the summit!
Please pass that list on to me. I'm doing the section on V4L2 spec ambiguities etc., so I'd like to merge all just questions in one session.
Note that my session only deals with V4L2 issues. For DVB issues someone else would have to coordinate that.
Regards,
Hans
Can you please confirm back on the feasibility of our attendance?
Regards Naveen Krishnamurthy ST Microelectronics.
-----Original Message----- From: workshop-2011-bounces@linuxtv.org [mailto:workshop-2011-bounces@linuxtv.org] On Behalf Of Mauro Carvalho Chehab Sent: Tuesday, July 17, 2012 10:31 AM To: Linux Media Mailing List; workshop-2011@linuxtv.org Subject: [Workshop-2011] Media summit at the Kernel Summit - was: Fwd: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit
As we did in 2012, we're planning to do a media summit again at KS/2012.
The KS/2012 will happen in San Diego, CA, US, between Aug 26-28, just before the LinuxCon North America.
In order to do it, I'd like to know who is interested on participate, and to get proposals about what subjects will be discussed there, in order to start planning the agenda.
Thanks! Mauro
-------- Mensagem original -------- Assunto: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit Data: Fri, 13 Jul 2012 13:37:08 -0400 De: Theodore Ts'o tytso@mit.edu Para: James Bottomley James.Bottomley@HansenPartnership.com CC: ksummit-2012-discuss@lists.linux-foundation.org, linux-kernel linux-kernel@vger.kernel.org
On Wed, Jul 11, 2012 at 09:09:15AM +0100, James Bottomley wrote:
Hi All,
We have set aside the second day of the kernel summit (Tuesday 28 August) as mini-summit day. So far we have only the PCI mini summit on this day, so if you can think of other topics, please send them to the kernel summit discuss list:
ksummit-2012-discuss@lists.linux-foundation.org
Looking at the available rooms, we think we can run about four or five mini summits.
As an added incentive, mini summit organisers get to pick who they invite and all the people they pick will get an automatic invitation to the third day of the kernel summit (but not the core first day) and the evening events.
OK, so far I believe I've heard concrete suggestions from identified (or fairly well identified :-) stuckees willing to organize mini-summits for:
- ARM
- Media
- PCI
- memcg
I may have missed some, so if people could send a message to the discuss list with [MINI-SUMMIT] in the subbject line and the name of the proposed mini-summit, that would be really helpful. Please indicate whether you are volunteering to help organize the proposed mini-summit, or identify someone you think can be volunteered. :-)
Things that we will be asking the mini-summit chars to determine, in addition to who should be given invites for Tuesday and Wednesday is an estimate of how much time you need, and a list of sub-topics (and who might lead the sub-topic discussion). We will be asking you to create a fairly well-defined schedule, with 30 and 60 minute slots, so that we can publish a schedule and so that people who might need to hop between mini-summits, have a chance to do so. So please start thinking about how long each of your sub-topics will need to be, and who might be needed for a particular sub-topic's discussion to be successful. There may be a number of developers, with fingers in multiple subsystem, where scheduling may become a bit of a challenge.
Thanks!!
- Ted
Ksummit-2012-discuss mailing list Ksummit-2012-discuss@lists.linux-foundation.org https://lists.linux-foundation.org/mailman/listinfo/ksummit-2012-discuss
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
Workshop-2011 mailing list Workshop-2011@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/workshop-2011
Em 24-07-2012 21:17, Naveen KRISHNAMURTHY escreveu:
Hello Mauro,
We would like to participate in the media summit at San Diego. Can you please reserve 2 seats for us.
Who are you planning to send to the media summit?
If possible we would like to reserve a session to present how we have used the linuxTV to model our devices and support our use cases. We will also consolidate and pass on a list of questions related to spec ambiguities and hope to get it clarified during the summit!
Can you please confirm back on the feasibility of our attendance?
I'll be doing it along this week.
Regards, Mauro
Hi Mauro,
For the summit this time it is be just me who would be attending. The another person who was slated to join me cannot make it this time.
Sorry for the delay in response.
Regards Naveen
-----Original Message----- From: Mauro Carvalho Chehab [mailto:mchehab@redhat.com] Sent: Tuesday, July 31, 2012 10:50 AM To: Naveen KRISHNAMURTHY Cc: Linux Media Mailing List; workshop-2011@linuxtv.org Subject: Re: [Workshop-2011] Media summit at the Kernel Summit - was: Fwd: Re: [Ksummit-2012-discuss] Organising Mini Summits within the Kernel Summit
Em 24-07-2012 21:17, Naveen KRISHNAMURTHY escreveu:
Hello Mauro,
We would like to participate in the media summit at San Diego. Can you please reserve 2 seats for us.
Who are you planning to send to the media summit?
If possible we would like to reserve a session to present how we have used the linuxTV to model our devices and support our use cases. We will also consolidate and pass on a list of questions related to spec ambiguities and hope to get it clarified during the summit!
Can you please confirm back on the feasibility of our attendance?
I'll be doing it along this week.
Regards, Mauro
In order to sum-up the discussions around the media summit, this is what we've got so far:
Proposals proposed by =====================================================================================|========================================================================================= Common device tree bindings for media devices Sylvester Nawrocki / Guennadi Liakhovetski ALSA and V4L/Media Controller Steven Toth / Laurent Pinchart ARM and needed features for V4L/DVB Steven Toth Intel media SDK Steven Toth V4L compiance tool Hans Verkuil V4L2 API ambiguities Hans Verkuil Media Controller library Laurent Pincart / Sakari Ailus SoC Vendors feedback – how to help them to go upstream – Android's V4L2 cam library Laurent Pincart / Guennadi Liakhovetski / Palash Bandyopadhyay / Naveen Krishnamurthy Synchronization, shared resource and optimizations Pawel Osciak V4L2/DVB issues from userspace perspective Rémi Denis-Courmont
As we'll have only one day for the summit, we may need to remove some themes, or maybe to get an extra time during LPC for the remaining discussions. Possible attendents: ===================
Guennadi Liakhovetski Laurent Pinchart Mauro Carvalho Chehab Michael Krufky Naveen Krishnamurthy +1 seat from ST (waiting Naveen to define who will be the other seat) Palash Bandyopadhyay Pawel Osciak Rémi Denis-Courmont Sakari Ailus Steven Toth Sylvester Nawrocki
Am I missing something?
Are there other proposals or people intending to participate?
Regards, Mauro
Em 31-07-2012 14:58, Mauro Carvalho Chehab escreveu:
In order to sum-up the discussions around the media summit, this is what we've got so far:
Proposals proposed by =====================================================================================|========================================================================================= Common device tree bindings for media devices Sylvester Nawrocki / Guennadi Liakhovetski ALSA and V4L/Media Controller Steven Toth / Laurent Pinchart ARM and needed features for V4L/DVB Steven Toth Intel media SDK Steven Toth V4L compiance tool Hans Verkuil V4L2 API ambiguities Hans Verkuil Media Controller library Laurent Pincart / Sakari Ailus SoC Vendors feedback – how to help them to go upstream – Android's V4L2 cam library Laurent Pincart / Guennadi Liakhovetski / Palash Bandyopadhyay / Naveen Krishnamurthy Synchronization, shared resource and optimizations Pawel Osciak V4L2/DVB issues from userspace perspective Rémi Denis-Courmont
As we'll have only one day for the summit, we may need to remove some themes, or maybe to get an extra time during LPC for the remaining discussions.
Possible attendents:
Guennadi Liakhovetski Laurent Pinchart Mauro Carvalho Chehab Michael Krufky Naveen Krishnamurthy +1 seat from ST (waiting Naveen to define who will be the other seat) Palash Bandyopadhyay Pawel Osciak Rémi Denis-Courmont Sakari Ailus Steven Toth Sylvester Nawrocki
Am I missing something?
Of course I am missing something: for the DT, ALSA and ARM proposals, we'll need attendants from those subsystems ;)
Are there other proposals or people intending to participate?
Regards, Mauro
-- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Mauro,
Can you add Sri Deevi to the list too?
Thanks, Palash
-----Original Message----- From: workshop-2011-bounces@linuxtv.org [mailto:workshop-2011-bounces@linuxtv.org] On Behalf Of Mauro Carvalho Chehab Sent: Tuesday, July 31, 2012 10:58 AM To: workshop-2011@linuxtv.org; Linux Media Mailing List Subject: [Workshop-2011] Media summit/KS-2012 proposals
In order to sum-up the discussions around the media summit, this is what we've got so far:
Proposals proposed by =====================================================================================|========================================================================================= Common device tree bindings for media devices Sylvester Nawrocki / Guennadi Liakhovetski ALSA and V4L/Media Controller Steven Toth / Laurent Pinchart ARM and needed features for V4L/DVB Steven Toth Intel media SDK Steven Toth V4L compiance tool Hans Verkuil V4L2 API ambiguities Hans Verkuil Media Controller library Laurent Pincart / Sakari Ailus SoC Vendors feedback - how to help them to go upstream - Android's V4L2 cam library Laurent Pincart / Guennadi Liakhovetski / Palash Bandyopadhyay / Naveen Krishnamurthy Synchronization, shared resource and optimizations Pawel Osciak V4L2/DVB issues from userspace perspective Rémi Denis-Courmont
As we'll have only one day for the summit, we may need to remove some themes, or maybe to get an extra time during LPC for the remaining discussions. Possible attendents: ===================
Guennadi Liakhovetski Laurent Pinchart Mauro Carvalho Chehab Michael Krufky Naveen Krishnamurthy +1 seat from ST (waiting Naveen to define who will be the other seat) Palash Bandyopadhyay Pawel Osciak Rémi Denis-Courmont Sakari Ailus Steven Toth Sylvester Nawrocki
Am I missing something?
Are there other proposals or people intending to participate?
Regards, Mauro
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Hi Mauro,
On Tuesday 31 July 2012 14:58:23 Mauro Carvalho Chehab wrote:
In order to sum-up the discussions around the media summit, this is what we've got so far:
Proposals proposed by
=========|================================================================== ======================= Common device tree bindings for media devices Sylvester Nawrocki / Guennadi Liakhovetski ALSA
and V4L/Media
Controller Steven Toth / Laurent Pinchart ARM
and needed features
for V4L/DVB Steven Toth Intel media SDK Steven Toth V4L compiance tool Hans Verkuil V4L2 API ambiguities Hans Verkuil Media Controller library Laurent Pincart /
Sakari Ailus
SoC Vendors feedback – how to help them to go upstream – Android's V4L2 cam library Laurent Pincart / Guennadi Liakhovetski / Palash Bandyopadhyay / Naveen Krishnamurthy Synchronization, shared resource and optimizations Pawel Osciak V4L2/DVB issues from userspace perspective Rémi Denis-Courmont
As we'll have only one day for the summit, we may need to remove some themes, or maybe to get an extra time during LPC for the remaining discussions.
Possible attendents:
Guennadi Liakhovetski Laurent Pinchart Mauro Carvalho Chehab Michael Krufky Naveen Krishnamurthy +1 seat from ST (waiting Naveen to define who will be the other seat) Palash Bandyopadhyay Pawel Osciak Rémi Denis-Courmont Sakari Ailus Steven Toth Sylvester Nawrocki
Am I missing something?
Are there other proposals or people intending to participate?
I think Hans Verkuil is.
On Tue 31 July 2012 19:58:23 Mauro Carvalho Chehab wrote:
In order to sum-up the discussions around the media summit, this is what we've got so far:
Proposals proposed by =====================================================================================|========================================================================================= Common device tree bindings for media devices Sylvester Nawrocki / Guennadi Liakhovetski ALSA and V4L/Media Controller Steven Toth / Laurent Pinchart ARM and needed features for V4L/DVB Steven Toth Intel media SDK Steven Toth V4L compiance tool Hans Verkuil V4L2 API ambiguities Hans Verkuil Media Controller library Laurent Pincart / Sakari Ailus SoC Vendors feedback – how to help them to go upstream – Android's V4L2 cam library Laurent Pincart / Guennadi Liakhovetski / Palash Bandyopadhyay / Naveen Krishnamurthy Synchronization, shared resource and optimizations Pawel Osciak V4L2/DVB issues from userspace perspective Rémi Denis-Courmont
As we'll have only one day for the summit, we may need to remove some themes, or maybe to get an extra time during LPC for the remaining discussions.
Possible attendents:
Guennadi Liakhovetski Laurent Pinchart Mauro Carvalho Chehab Michael Krufky Naveen Krishnamurthy +1 seat from ST (waiting Naveen to define who will be the other seat) Palash Bandyopadhyay Pawel Osciak Rémi Denis-Courmont Sakari Ailus Steven Toth Sylvester Nawrocki
Am I missing something?
Are there other proposals or people intending to participate?
Yes: I would like to discuss how to add support for HDMI CEC to the kernel. In particularly I need some feedback from the GPU driver developers on what their ideas are, since CEC is something that touches both V4L2 and GPU.
I'm not sure what the best place is to do this, it's a fairly specialized topic. It might be better suited to just get a few interested devs together in the evening or during some other suitable time and just see if we can hammer out some scheme. I'll have a presentation on the topic ready.
Rob, what are your ideas on this?
Who else might be interested in this?
Regards,
Hans
2012/8/1 Hans Verkuil hverkuil@xs4all.nl:
On Tue 31 July 2012 19:58:23 Mauro Carvalho Chehab wrote:
In order to sum-up the discussions around the media summit, this is what we've got so far:
Proposals proposed by =====================================================================================|========================================================================================= Common device tree bindings for media devices Sylvester Nawrocki / Guennadi Liakhovetski ALSA and V4L/Media Controller Steven Toth / Laurent Pinchart ARM and needed features for V4L/DVB Steven Toth Intel media SDK Steven Toth V4L compiance tool Hans Verkuil V4L2 API ambiguities Hans Verkuil Media Controller library Laurent Pincart / Sakari Ailus SoC Vendors feedback – how to help them to go upstream – Android's V4L2 cam library Laurent Pincart / Guennadi Liakhovetski / Palash Bandyopadhyay / Naveen Krishnamurthy Synchronization, shared resource and optimizations Pawel Osciak V4L2/DVB issues from userspace perspective Rémi Denis-Courmont
As we'll have only one day for the summit, we may need to remove some themes, or maybe to get an extra time during LPC for the remaining discussions.
Possible attendents:
Guennadi Liakhovetski Laurent Pinchart Mauro Carvalho Chehab Michael Krufky Naveen Krishnamurthy +1 seat from ST (waiting Naveen to define who will be the other seat) Palash Bandyopadhyay Pawel Osciak Rémi Denis-Courmont Sakari Ailus Steven Toth Sylvester Nawrocki
Am I missing something?
Are there other proposals or people intending to participate?
Yes: I would like to discuss how to add support for HDMI CEC to the kernel. In particularly I need some feedback from the GPU driver developers on what their ideas are, since CEC is something that touches both V4L2 and GPU.
I am not familiar with CEC implementation in GPU. But CEC should be independent in functionality with audio/video though it is A/V related. I prefer to support only CEC frame TX/RX in kernel. CEC include different category features that need parsing and may need application interaction. Venders may also configure some features as not supported. If kernel support more than TX/RX, policy may be separated to user space part and kernel space part. The kernel interface also becomes complex, maybe ambiguous too. An user space library is more suitable for this task to interact with OS/media player/audio control/etc.
I'm not sure what the best place is to do this, it's a fairly specialized topic. It might be better suited to just get a few interested devs together in the evening or during some other suitable time and just see if we can hammer out some scheme. I'll have a presentation on the topic ready.
Rob, what are your ideas on this?
Who else might be interested in this?
Regards,
Hans-- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Fri August 3 2012 07:37:13 Jun Nie wrote:
2012/8/1 Hans Verkuil hverkuil@xs4all.nl:
On Tue 31 July 2012 19:58:23 Mauro Carvalho Chehab wrote:
In order to sum-up the discussions around the media summit, this is what we've got so far:
Proposals proposed by =====================================================================================|========================================================================================= Common device tree bindings for media devices Sylvester Nawrocki / Guennadi Liakhovetski ALSA and V4L/Media Controller Steven Toth / Laurent Pinchart ARM and needed features for V4L/DVB Steven Toth Intel media SDK Steven Toth V4L compiance tool Hans Verkuil V4L2 API ambiguities Hans Verkuil Media Controller library Laurent Pincart / Sakari Ailus SoC Vendors feedback – how to help them to go upstream – Android's V4L2 cam library Laurent Pincart / Guennadi Liakhovetski / Palash Bandyopadhyay / Naveen Krishnamurthy Synchronization, shared resource and optimizations Pawel Osciak V4L2/DVB issues from userspace perspective Rémi Denis-Courmont
As we'll have only one day for the summit, we may need to remove some themes, or maybe to get an extra time during LPC for the remaining discussions.
Possible attendents:
Guennadi Liakhovetski Laurent Pinchart Mauro Carvalho Chehab Michael Krufky Naveen Krishnamurthy +1 seat from ST (waiting Naveen to define who will be the other seat) Palash Bandyopadhyay Pawel Osciak Rémi Denis-Courmont Sakari Ailus Steven Toth Sylvester Nawrocki
Am I missing something?
Are there other proposals or people intending to participate?
Yes: I would like to discuss how to add support for HDMI CEC to the kernel. In particularly I need some feedback from the GPU driver developers on what their ideas are, since CEC is something that touches both V4L2 and GPU.
I am not familiar with CEC implementation in GPU.
As far as I am aware there isn't any.
But CEC should be independent in functionality with audio/video though it is A/V related. I prefer to support only CEC frame TX/RX in kernel. CEC include different category features that need parsing and may need application interaction. Venders may also configure some features as not supported. If kernel support more than TX/RX, policy may be separated to user space part and kernel space part. The kernel interface also becomes complex, maybe ambiguous too. An user space library is more suitable for this task to interact with OS/media player/audio control/etc.
I wish that were possible. Our current implementation internally is as you proposed, but we recently discovered that for HDMI 1.4a this won't fly.
There the CEC channel is also used for control of the ethernet and audio return channel, and even for hotplug detect in some cases.
That's something that has to be handled entirely in kernelspace. So some parts of the CEC protocol have to be internally processed, other parts have to be processed in userspace.
This really complicates things and it makes it even more important that the subsystems that need CEC work together on this.
Regards,
Hans
2012/8/3 Hans Verkuil hverkuil@xs4all.nl:
On Fri August 3 2012 07:37:13 Jun Nie wrote:
2012/8/1 Hans Verkuil hverkuil@xs4all.nl:
On Tue 31 July 2012 19:58:23 Mauro Carvalho Chehab wrote:
In order to sum-up the discussions around the media summit, this is what we've got so far:
Proposals proposed by =====================================================================================|========================================================================================= Common device tree bindings for media devices Sylvester Nawrocki / Guennadi Liakhovetski ALSA and V4L/Media Controller Steven Toth / Laurent Pinchart ARM and needed features for V4L/DVB Steven Toth Intel media SDK Steven Toth V4L compiance tool Hans Verkuil V4L2 API ambiguities Hans Verkuil Media Controller library Laurent Pincart / Sakari Ailus SoC Vendors feedback – how to help them to go upstream – Android's V4L2 cam library Laurent Pincart / Guennadi Liakhovetski / Palash Bandyopadhyay / Naveen Krishnamurthy Synchronization, shared resource and optimizations Pawel Osciak V4L2/DVB issues from userspace perspective Rémi Denis-Courmont
As we'll have only one day for the summit, we may need to remove some themes, or maybe to get an extra time during LPC for the remaining discussions.
Possible attendents:
Guennadi Liakhovetski Laurent Pinchart Mauro Carvalho Chehab Michael Krufky Naveen Krishnamurthy +1 seat from ST (waiting Naveen to define who will be the other seat) Palash Bandyopadhyay Pawel Osciak Rémi Denis-Courmont Sakari Ailus Steven Toth Sylvester Nawrocki
Am I missing something?
Are there other proposals or people intending to participate?
Yes: I would like to discuss how to add support for HDMI CEC to the kernel. In particularly I need some feedback from the GPU driver developers on what their ideas are, since CEC is something that touches both V4L2 and GPU.
I am not familiar with CEC implementation in GPU.
As far as I am aware there isn't any.
But CEC should be independent in functionality with audio/video though it is A/V related. I prefer to support only CEC frame TX/RX in kernel. CEC include different category features that need parsing and may need application interaction. Venders may also configure some features as not supported. If kernel support more than TX/RX, policy may be separated to user space part and kernel space part. The kernel interface also becomes complex, maybe ambiguous too. An user space library is more suitable for this task to interact with OS/media player/audio control/etc.
I wish that were possible. Our current implementation internally is as you proposed, but we recently discovered that for HDMI 1.4a this won't fly.
There the CEC channel is also used for control of the ethernet and audio return channel, and even for hotplug detect in some cases.
That's something that has to be handled entirely in kernelspace. So some parts of the CEC protocol have to be internally processed, other parts have to be processed in userspace.
Thanks for your reminder. I was not aware of HEAC/ARC dependence on CEC for our product does not include these features. Maybe we can parse CDC CEC message in kernel and leave others to user space. But it is also an ugly propose. BTW: Do you see any scenario that EDID is changed dynamically? I do not know why to add hot-plug to CEC control while no physical HPD changes.
This really complicates things and it makes it even more important that the subsystems that need CEC work together on this.
Regards,
Hans
On Mon August 6 2012 15:22:38 Jun Nie wrote:
2012/8/3 Hans Verkuil hverkuil@xs4all.nl:
On Fri August 3 2012 07:37:13 Jun Nie wrote:
2012/8/1 Hans Verkuil hverkuil@xs4all.nl:
On Tue 31 July 2012 19:58:23 Mauro Carvalho Chehab wrote:
In order to sum-up the discussions around the media summit, this is what we've got so far:
Proposals proposed by =====================================================================================|========================================================================================= Common device tree bindings for media devices Sylvester Nawrocki / Guennadi Liakhovetski ALSA and V4L/Media Controller Steven Toth / Laurent Pinchart ARM and needed features for V4L/DVB Steven Toth Intel media SDK Steven Toth V4L compiance tool Hans Verkuil V4L2 API ambiguities Hans Verkuil Media Controller library Laurent Pincart / Sakari Ailus SoC Vendors feedback – how to help them to go upstream – Android's V4L2 cam library Laurent Pincart / Guennadi Liakhovetski / Palash Bandyopadhyay / Naveen Krishnamurthy Synchronization, shared resource and optimizations Pawel Osciak V4L2/DVB issues from userspace perspective Rémi Denis-Courmont
As we'll have only one day for the summit, we may need to remove some themes, or maybe to get an extra time during LPC for the remaining discussions.
Possible attendents:
Guennadi Liakhovetski Laurent Pinchart Mauro Carvalho Chehab Michael Krufky Naveen Krishnamurthy +1 seat from ST (waiting Naveen to define who will be the other seat) Palash Bandyopadhyay Pawel Osciak Rémi Denis-Courmont Sakari Ailus Steven Toth Sylvester Nawrocki
Am I missing something?
Are there other proposals or people intending to participate?
Yes: I would like to discuss how to add support for HDMI CEC to the kernel. In particularly I need some feedback from the GPU driver developers on what their ideas are, since CEC is something that touches both V4L2 and GPU.
I am not familiar with CEC implementation in GPU.
As far as I am aware there isn't any.
But CEC should be independent in functionality with audio/video though it is A/V related. I prefer to support only CEC frame TX/RX in kernel. CEC include different category features that need parsing and may need application interaction. Venders may also configure some features as not supported. If kernel support more than TX/RX, policy may be separated to user space part and kernel space part. The kernel interface also becomes complex, maybe ambiguous too. An user space library is more suitable for this task to interact with OS/media player/audio control/etc.
I wish that were possible. Our current implementation internally is as you proposed, but we recently discovered that for HDMI 1.4a this won't fly.
There the CEC channel is also used for control of the ethernet and audio return channel, and even for hotplug detect in some cases.
That's something that has to be handled entirely in kernelspace. So some parts of the CEC protocol have to be internally processed, other parts have to be processed in userspace.
Thanks for your reminder. I was not aware of HEAC/ARC dependence on CEC for our product does not include these features. Maybe we can parse CDC CEC message in kernel and leave others to user space. But it is also an ugly propose. BTW: Do you see any scenario that EDID is changed dynamically? I do not know why to add hot-plug to CEC control while no physical HPD changes.
Switching between an EDID for analog or digital input when using a DVI-I cable is the most common use-case that I know of. But this does not apply as such to an HDMI connector since that's digital only.
Another might be that a simple EDID is setup when the device boots, and once it is booted and all the features of the device are known a more advanced EDID might be written.
I'm sure that there are more creative uses as well...
Regards,
Hans
Is there any summary for this summit or presentation material? I am looking forward for some idea on CEC. It is really complex in functionality. Maybe other guys is expecting simiar fruite from summit too.
B.R. Jun
On Wed 5 September 2012 10:04:41 Jun Nie wrote:
Is there any summary for this summit or presentation material? I am looking forward for some idea on CEC. It is really complex in functionality. Maybe other guys is expecting simiar fruite from summit too.
Yes, there will be a summit report. It's not quite finished yet, I think.
With respect to CEC we had some useful discussions. It will have to be a new class of device (/dev/cecX), so the userspace API will be separate from drm or v4l.
And the kernel will have to take care of the core CEC protocol w.r.t. control and discovery due to the HDMI 1.4a requirements.
I plan on starting work on this within 1-2 weeks.
My CEC presentation can be found here:
http://hverkuil.home.xs4all.nl/presentations/v4l2-workshop-cec.odp
Regards,
Hans
2012/9/5 Hans Verkuil hverkuil@xs4all.nl:
On Wed 5 September 2012 10:04:41 Jun Nie wrote:
Is there any summary for this summit or presentation material? I am looking forward for some idea on CEC. It is really complex in functionality. Maybe other guys is expecting simiar fruite from summit too.
Yes, there will be a summit report. It's not quite finished yet, I think.
With respect to CEC we had some useful discussions. It will have to be a new class of device (/dev/cecX), so the userspace API will be separate from drm or v4l.
And the kernel will have to take care of the core CEC protocol w.r.t. control and discovery due to the HDMI 1.4a requirements.
I plan on starting work on this within 1-2 weeks.
My CEC presentation can be found here:
http://hverkuil.home.xs4all.nl/presentations/v4l2-workshop-cec.odp
Regards,
Hans
Thanks for quick response! It's good to know that CEC is independent with DRM/V4L for my HDMI implementation is FB/lcd-device based. CEC is also deserved to have independent management in both hardware signal and functionality. Someone also expressed similar thoughts before. Will remote control protocal parsing are done in userspace reference library? Or not decided yet?
B.R. Jun
On Thu September 6 2012 06:09:44 Jun Nie wrote:
2012/9/5 Hans Verkuil hverkuil@xs4all.nl:
On Wed 5 September 2012 10:04:41 Jun Nie wrote:
Is there any summary for this summit or presentation material? I am looking forward for some idea on CEC. It is really complex in functionality. Maybe other guys is expecting simiar fruite from summit too.
Yes, there will be a summit report. It's not quite finished yet, I think.
With respect to CEC we had some useful discussions. It will have to be a new class of device (/dev/cecX), so the userspace API will be separate from drm or v4l.
And the kernel will have to take care of the core CEC protocol w.r.t. control and discovery due to the HDMI 1.4a requirements.
I plan on starting work on this within 1-2 weeks.
My CEC presentation can be found here:
http://hverkuil.home.xs4all.nl/presentations/v4l2-workshop-cec.odp
Regards,
HansThanks for quick response! It's good to know that CEC is independent with DRM/V4L for my HDMI implementation is FB/lcd-device based. CEC is also deserved to have independent management in both hardware signal and functionality. Someone also expressed similar thoughts before. Will remote control protocal parsing are done in userspace reference library? Or not decided yet?
Are you referring to the remote control pass-through functionality? I don't know yet whether that will go through a userspace library or through the RC kernel subsystem, or possibly both.
Most of the other non-system messages will go to a userspace library.
But I haven't started coding yet, so it is very early days :-)
The main thing is that at least I now have a high-level design that I can start to work with.
Regards,
Hans
2012/9/6 Hans Verkuil hverkuil@xs4all.nl:
On Thu September 6 2012 06:09:44 Jun Nie wrote:
2012/9/5 Hans Verkuil hverkuil@xs4all.nl:
On Wed 5 September 2012 10:04:41 Jun Nie wrote:
Is there any summary for this summit or presentation material? I am looking forward for some idea on CEC. It is really complex in functionality. Maybe other guys is expecting simiar fruite from summit too.
Yes, there will be a summit report. It's not quite finished yet, I think.
With respect to CEC we had some useful discussions. It will have to be a new class of device (/dev/cecX), so the userspace API will be separate from drm or v4l.
And the kernel will have to take care of the core CEC protocol w.r.t. control and discovery due to the HDMI 1.4a requirements.
I plan on starting work on this within 1-2 weeks.
My CEC presentation can be found here:
http://hverkuil.home.xs4all.nl/presentations/v4l2-workshop-cec.odp
Regards,
HansThanks for quick response! It's good to know that CEC is independent with DRM/V4L for my HDMI implementation is FB/lcd-device based. CEC is also deserved to have independent management in both hardware signal and functionality. Someone also expressed similar thoughts before. Will remote control protocal parsing are done in userspace reference library? Or not decided yet?
Are you referring to the remote control pass-through functionality? I don't know yet whether that will go through a userspace library or through the RC kernel subsystem, or possibly both.
I mean all the feature that can involved in handhold remote control, one touch play, standby, on screen display, etc, such as play/pause/poweroff. I want to mention all non CDC features that can be implemented in user space. They are hard to be covered by any sub-system and user space library is more proper. Just like your metaphor, kitchen sink for CEC. I like your words.
Most of the other non-system messages will go to a userspace library.
Does routing/address is included in system message here?
But I haven't started coding yet, so it is very early days :-)
The main thing is that at least I now have a high-level design that I can start to work with.
Regards,
Hans
On Thu 6 September 2012 12:29:17 Jun Nie wrote:
2012/9/6 Hans Verkuil hverkuil@xs4all.nl:
On Thu September 6 2012 06:09:44 Jun Nie wrote:
2012/9/5 Hans Verkuil hverkuil@xs4all.nl:
On Wed 5 September 2012 10:04:41 Jun Nie wrote:
Is there any summary for this summit or presentation material? I am looking forward for some idea on CEC. It is really complex in functionality. Maybe other guys is expecting simiar fruite from summit too.
Yes, there will be a summit report. It's not quite finished yet, I think.
With respect to CEC we had some useful discussions. It will have to be a new class of device (/dev/cecX), so the userspace API will be separate from drm or v4l.
And the kernel will have to take care of the core CEC protocol w.r.t. control and discovery due to the HDMI 1.4a requirements.
I plan on starting work on this within 1-2 weeks.
My CEC presentation can be found here:
http://hverkuil.home.xs4all.nl/presentations/v4l2-workshop-cec.odp
Regards,
HansThanks for quick response! It's good to know that CEC is independent with DRM/V4L for my HDMI implementation is FB/lcd-device based. CEC is also deserved to have independent management in both hardware signal and functionality. Someone also expressed similar thoughts before. Will remote control protocal parsing are done in userspace reference library? Or not decided yet?
Are you referring to the remote control pass-through functionality? I don't know yet whether that will go through a userspace library or through the RC kernel subsystem, or possibly both.
I mean all the feature that can involved in handhold remote control, one touch play, standby, on screen display, etc, such as play/pause/poweroff. I want to mention all non CDC features that can be implemented in user space. They are hard to be covered by any sub-system and user space library is more proper. Just like your metaphor, kitchen sink for CEC. I like your words.
Yes, that will all be userspace.
My plan is to have the CEC adapter driver handle the core CEC protocol, allow other drivers to intercept messages that are relevant for them and send messages themselves, and anything that remains will be available to userspace for which a new library will be created.
Now, don't ask me about any of the details, since I don't have them yet :-) My plan is to start working on this next week or the week after.
Are you willing to test early versions of this work? Can you test HDMI 1.4a features as well? Testing this might well be one of the harder things to do.
Regards,
Hans
2012/9/6 Hans Verkuil hverkuil@xs4all.nl:
On Thu 6 September 2012 12:29:17 Jun Nie wrote:
2012/9/6 Hans Verkuil hverkuil@xs4all.nl:
On Thu September 6 2012 06:09:44 Jun Nie wrote:
2012/9/5 Hans Verkuil hverkuil@xs4all.nl:
On Wed 5 September 2012 10:04:41 Jun Nie wrote:
Is there any summary for this summit or presentation material? I am looking forward for some idea on CEC. It is really complex in functionality. Maybe other guys is expecting simiar fruite from summit too.
Yes, there will be a summit report. It's not quite finished yet, I think.
With respect to CEC we had some useful discussions. It will have to be a new class of device (/dev/cecX), so the userspace API will be separate from drm or v4l.
And the kernel will have to take care of the core CEC protocol w.r.t. control and discovery due to the HDMI 1.4a requirements.
I plan on starting work on this within 1-2 weeks.
My CEC presentation can be found here:
http://hverkuil.home.xs4all.nl/presentations/v4l2-workshop-cec.odp
Regards,
HansThanks for quick response! It's good to know that CEC is independent with DRM/V4L for my HDMI implementation is FB/lcd-device based. CEC is also deserved to have independent management in both hardware signal and functionality. Someone also expressed similar thoughts before. Will remote control protocal parsing are done in userspace reference library? Or not decided yet?
Are you referring to the remote control pass-through functionality? I don't know yet whether that will go through a userspace library or through the RC kernel subsystem, or possibly both.
I mean all the feature that can involved in handhold remote control, one touch play, standby, on screen display, etc, such as play/pause/poweroff. I want to mention all non CDC features that can be implemented in user space. They are hard to be covered by any sub-system and user space library is more proper. Just like your metaphor, kitchen sink for CEC. I like your words.
Yes, that will all be userspace.
My plan is to have the CEC adapter driver handle the core CEC protocol, allow other drivers to intercept messages that are relevant for them and send messages themselves, and anything that remains will be available to userspace for which a new library will be created.
Now, don't ask me about any of the details, since I don't have them yet :-) My plan is to start working on this next week or the week after.
Are you willing to test early versions of this work? Can you test HDMI 1.4a features as well? Testing this might well be one of the harder things to do.
I am willing to test or contribute to the library. But my hardware does not include HEAC. So my test scope limites to the features that can be implemented in user space.
Regards,
Hans
Hi Hans,
On Wednesday 05 September 2012 10:28:30 Hans Verkuil wrote:
On Wed 5 September 2012 10:04:41 Jun Nie wrote:
Is there any summary for this summit or presentation material? I am looking forward for some idea on CEC. It is really complex in functionality. Maybe other guys is expecting simiar fruite from summit too.
Yes, there will be a summit report. It's not quite finished yet, I think.
With respect to CEC we had some useful discussions. It will have to be a new class of device (/dev/cecX), so the userspace API will be separate from drm or v4l.
This is a repeat of a comment from the KS discussion: what about using the socket API instead of a device node ?
And the kernel will have to take care of the core CEC protocol w.r.t. control and discovery due to the HDMI 1.4a requirements.
I plan on starting work on this within 1-2 weeks.
My CEC presentation can be found here:
http://hverkuil.home.xs4all.nl/presentations/v4l2-workshop-cec.odp
On Thu 13 September 2012 03:01:34 Laurent Pinchart wrote:
Hi Hans,
On Wednesday 05 September 2012 10:28:30 Hans Verkuil wrote:
On Wed 5 September 2012 10:04:41 Jun Nie wrote:
Is there any summary for this summit or presentation material? I am looking forward for some idea on CEC. It is really complex in functionality. Maybe other guys is expecting simiar fruite from summit too.
Yes, there will be a summit report. It's not quite finished yet, I think.
With respect to CEC we had some useful discussions. It will have to be a new class of device (/dev/cecX), so the userspace API will be separate from drm or v4l.
This is a repeat of a comment from the KS discussion: what about using the socket API instead of a device node ?
What benefit would that give me? I frankly don't think it maps that well to a socket API. Some parts of the CEC protocol are more or less network like, but others are point-to-point. Basically CEC is a mess, protocol-wise, and I much prefer a char-device where you have more flexibility.
Regards,
Hans
And the kernel will have to take care of the core CEC protocol w.r.t. control and discovery due to the HDMI 1.4a requirements.
I plan on starting work on this within 1-2 weeks.
My CEC presentation can be found here:
http://hverkuil.home.xs4all.nl/presentations/v4l2-workshop-cec.odp
Hi Mauro,
On 07/31/2012 07:58 PM, Mauro Carvalho Chehab wrote:
In order to sum-up the discussions around the media summit, this is what we've got so far:
Proposals proposed by =====================================================================================|========================================================================================= Common device tree bindings for media devices Sylvester Nawrocki / Guennadi Liakhovetski ALSA and V4L/Media Controller Steven Toth / Laurent Pinchart ARM and needed features for V4L/DVB Steven Toth Intel media SDK Steven Toth V4L compiance tool Hans Verkuil V4L2 API ambiguities Hans Verkuil Media Controller library Laurent Pincart / Sakari Ailus SoC Vendors feedback – how to help them to go upstream – Android's V4L2 cam library Laurent Pincart / Guennadi Liakhovetski / Palash Bandyopadhyay / Naveen Krishnamurthy Synchronization, shared resource and optimizations Pawel Osciak V4L2/DVB issues from userspace perspective Rémi Denis-Courmont
As we'll have only one day for the summit, we may need to remove some themes, or maybe to get an extra time during LPC for the remaining discussions.
Possible attendents:
Guennadi Liakhovetski Laurent Pinchart Mauro Carvalho Chehab Michael Krufky Naveen Krishnamurthy +1 seat from ST (waiting Naveen to define who will be the other seat) Palash Bandyopadhyay Pawel Osciak Rémi Denis-Courmont Sakari Ailus Steven Toth Sylvester Nawrocki
Am I missing something?
Are there other proposals or people intending to participate?
Unfortunately I won't be attending the media summit this time. Instead, my colleagues: Bartlomiej Zolnierkiewicz and Marek Szyprowski could cover the topic I proposed. Can you please add them to the list of attendants instead of me ?
Best regards, Sylwester
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Andy Walls -
Antti Palosaari -
Devin Heitmueller -
Guennadi Liakhovetski -
Hans Verkuil -
Jun Nie -
Laurent Pinchart -
Mauro Carvalho Chehab -
Michael Krufky -
Naveen KRISHNAMURTHY -
Palash Bandyopadhyay -
Pawel Osciak -
Rémi Denis-Courmont -
Steven Toth -
Sylwester Nawrocki -
Sylwester Nawrocki