[Ksummit-2012-discuss] [ATTEND] media subsystem

Mauro Carvalho Chehab mchehab at redhat.com
Thu Jun 28 15:13:47 UTC 2012

I'd like to have media subsystem discussions this year's at kernel summit. 
The media subsystem is one of the most active driver subsystem, and there are lots of 
things there that require face-to-face discussions, not only between subsystem developers, 
but also with other maintainers. In special, during KS/2011, it was identified the need 
of interacting with video and audio system people, in order to solve some common issues, 
like HDMI CEC and audio/video synchronization. 

The increasing complexity of SoC designs used by media devices requires API
extensions at the media APIs in order to proper expose and control all hardware 
functionality on a standard way. A new API to better allow negotiating userspace
and Kernelspace capabilities seem to be required.

More discussions with regards to shared resources locking is needed, on devices that
implement multiple API's, but not a the same time.

The incompatibility between udev-182 and the existing drivers will also require lots
of discussions, as that affects 64 media drivers, and changing them to comply with
the current requirement of using request_firmware_nowait() won't work on several
drivers. So, a solution (or a set of solutions) needs to be found, in order to fix
such incompatibility.


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