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| Who | What | When |
|---|---|---|
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| CounterPillow | Does anyone have any suggestions for an SBC capable of Wi-Fi and using a mainline supported SoC with a working ISP and CSI, as well as mainline supported (or about to be supported) hardware encoder? | [12:41] |
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| CounterPillow | RK3399 based boards would be close but they're a bit more power than I need | [12:41] |
| jmassot | sailus: Hi, do you know if you will have some time to review my Maxim GMSL patches https://patchwork.linuxtv.org/project/linux-media/list/?series=12033
sailus: I have two lines to fix already for 32 bits build, but I would like to have more feedback before sending a new version | [12:49] |
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| CptMitten | Hello, I'm working on a driver for a camera that is not currently available for mass market. I'm trying to implement a custom compound control (TYPE_U8) but I'm having troubles with v4l2_ctrl_config.p_def, my control is initialized in v4l2_ctrl_type_op_init with default_value instead of p_def. Did I missunderstood the intended behavior of p_def for compound ctrl ? | [13:50] |
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CutieMelo has quit IRC (Ping timeout: 480 seconds) CutieMelo has joined #linux-media ten157237743246305 has joined #linux-media | [13:51] |
| CptMitten | Btw, I found a solution by implementing my own ctr_type_op_init but I'm not sure it's the way I should proceed. | [14:01] |
| sailus | jmassot: I'll try to take a look later today / tomorrow. | [14:12] |
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| tomba | sailus: hverkuil: is there any rule where new v4l2 driver userspace headers should be added? I see most (all?) of them are in uapi/linux/ but I'd rather add uapi/media/vendor/ directory. would that be fine? | [14:14] |
| jmassot | sailus: thank you :) | [14:16] |
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| hverkuil | tomba: Looking at include/uapi/linux there are no vendor subdirs, but there are some subsystem subdirs (e.g. 'can'). I would not be opposed to adding a media uapi/linux/media subdir, but I don't think we can move existing driver specific media headers to that new subdir. So that would be valid for new headers only.
CptMitten: you have an array of TYPE_U8 in your control? | [14:20] |
| tomba | hverkuil: I was thinking about uapi/media/, similar to uapi/drm/ not uapi/linux/media. I don't really have strong opinion here, I just thought it would be much cleaner to have new files somewhere else than that huge uapi/linux/ directory. | [14:21] |
| CptMitten | hverkuil: exactly | [14:21] |
| hverkuil | tomba: a bit late for that. I suspect it is confusing when some headers are in uapi/linux and others in uapi/media.
CptMitten: p_def gives the default valid for 'struct' values. E.g. for a V4L2_CTRL_TYPE_AREA. If you have an array of 'area' types, then it will copy the default value to each element. | [14:23] |
| tomba | hverkuil: ok, but uapi/linux/media/vendor/ would be ok? or is that confusing too, and we have already lost the game =) | [14:26] |
| hverkuil | There is no support to pass a complete default array of <something>. p_def works on the array element only.
Creating your own init op is indeed the correct method if you need a default array value containing different values for each element. | [14:26] |
| CptMitten | Oh, ok ! Ty | [14:27] |
| hverkuil | It's the first time I see someone who wants this, I suspect it is rare enough to warrant some extra work in the driver instead of adding support for this in the core framework. | [14:28] |
| CptMitten | Ofc, I saw a simple implementation thought, if one day it appears to be needed I would be happy to submit a patch. Ty again, have a good day. | [14:31] |
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| hverkuil | tomba: I feel we are just too late for that. A uapi/linux/media dir might be useful though (there is already a uapi/linux/dvb). Perhaps we can have identically named headers there of the currently existing headers in uapi/linux that just include those. E.g. linux/media/v4l2-subdev.h: #include <linux/v4l2-subdev.h> | [14:34] |
| linkmauve | CounterPillow, every SoC supports a USB wifi card, maybe that could widen your choice? | [14:37] |
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| sirspudd | Hola; v4l2-ctl --device /dev/video0 --list-formats-ext shows every available format capped to 30fps
the sensor in question is an ov7251 attached to an imx6q, and configured for 90 fps ([fmt:Y10_1X10/640x480@100/9043 field:none ...] | [19:29] |
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