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   mchehab: <u>Da_Coynul</u>: it doesn't work this way... sent an e-mail to the ML... people usually don't review patches via IRC
   <br> also, it is probably too late for most V4L developers, as most of the active ones are not in US those days
   Da_Coynul: <u>mchehab</u>: OK. it was old so I didn't know if I should resurrect an old thread on the mailing list
   mchehab: you can either resurrect or start a new one
   Da_Coynul: OK, thanks.
   mchehab: anytime
   <br> ttyl
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   BanHammor: Hi! Is there a way to guarantee that vb2_ops-&gt;start_streaming() isn't called twice for the same hardware if the m2m_ctx are different?
   hverkuil_: <u>BanHammor</u>: do you see it being called twice? It shouldn't.
   <br> the m2m framework should check that.
   <br> or does it? Let me check.
   BanHammor: I haven't found a place where it checks that, hverkuil_
   hverkuil_: each instance has its own queues, so each queue has its own start_streaming as well.
   <br> There is no 'top-level' start streaming, you'll have to take care of that in the driver.
   <br> But most start_streaming implementations for m2m drivers don't do much.
   BanHammor: so...i'm supposed to initialize my hardware in device_run() or something?
   hverkuil_: what sort of device driver is it? A codec?
   BanHammor: it accepts and puts out raw GRAY8 data using only one stream at a time.
   <br> so it's not really a codec, hverkuil_
   hverkuil_: configuring the hardware is typically done in device_run. Global initialization is more likely done in probe().
   BanHammor: I see, thanks.
   hverkuil_: If you have to deal with power, then it becomes more complicated, and I wouldn't know that off-hand either.
   <br> The best approach generally is to look at existing drivers.
   sailus: <u>mchehab</u>: Bom dia!
   mchehab: <u>sailus</u>: moikka!
   sailus: How do you do?
   mchehab: fine. and you?
   sailus: Fine, too, thanks!
   <br> I'd have a question on the pull request to the smiapp driver I sent recently.
   <br> https://patchwork.linuxtv.org/patch/37297/
   <br> Could you check that out at some point?
   mchehab: I intend to handle pull requests today
   sailus: That'd be wonderful. :-)
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   pinchartl: <u>hverkuil_</u>: would you have time to review "v4l: ctrls: Add deinterlacing mode control" ?
   hverkuil_: <u>pinchartl</u>: is there a later patch that actually uses this control?
   <br> I don't see it in the v3 patch series...
   pinchartl: <u>hverkuil_</u>: I'll send a v4
   hverkuil_: Also see my reply to the patch on the ML.
   kbingham: <u>hverkuil</u>: pinchartl: Looks like it gets changed in Patch 6
   <br> possibly worth squashing the patches...
   pinchartl: <u>hverkuil_</u>: thanks
   <br> I have to go now, I'll be back a bit later
   <br> back (for a bit)
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