Re: [Ksummit-discuss] Draft agenda for the kernel summit

[Mauro Carvalho Chehab <mchehab@osg.samsung.com>]

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Em Tue, 20 Oct 2015 14:22:09 +0100
Mark Brown <broonie@kernel.org> escreveu:

> On Tue, Oct 20, 2015 at 12:55:37PM +0100, Liam Girdwood wrote:
> > On Mon, 2015-10-19 at 14:46 -0600, Shuah Khan wrote:
> 
> > > You can find the media graph that includes ALSA Mixer Function and
> > > Control Interface (Device: /dev/snd/controlC2), PCM Audio Capture
> > > Function and PCM Audio Capture interface (Device: /dev/snd/pcmC2D0c)
> > > at:
> 
> > > https://drive.google.com/open?id=0B0NIL0BQg-AlbjZkcElJb2RtVk0
> 
> > Looks nice. Fwiw, the graph will probably get a lot bigger when we show
> > the audio DSP and codec paths (as DSPs and codecs have multiple muxes
> > and mixers). It may be good to have a cmd line option to stop at certain
> > nodes on the graph to avoid over populated/complex graphs ?
> 
> Having the ability to describe which physical device things are part of
> would probably help a lot with the rendering here - I'm guessing that a
> lot of filtering is likely to be things like collapsing down devices not
> being looked at right now into a single block in the graph and it'd
> probably help with user comprehesibilty provide a mapping back to things
> they can see in the physical world.
> 
> This doesn't entirely correspond with struct device due to MFD and
> multi-function USB stuff but it'd be a good start I expect.

Yeah, collapsing devices make sense.

Sakari is working on a properties API to be added to Media
Controller entities/interfaces/links. Perhaps he could add this
requirement to the API he's working with.

Regards,
Mauro



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