At Mon, 23 Jul 2012 14:39:38 -0500, Pierre-Louis Bossart wrote:
On 7/23/2012 9:18 AM, Gabriel M. Beddingfield wrote:
Is there an established way for me (from userspace) to pass the HDMI Channel Allocation (1 byte) to the driver? If not, can you recommend an approach?
In most of the drivers that I've inspected, the drivers seem to assume that there's a 1:1 mapping of Number-of-Channels to Channel-Allocation. However, the HDMI sink declares which speakers it has attached in the EDID. If I can match this in userspace... I need a way to communicate it to the driver.
I believe this is one of the topics that will be presented by Takashi at LPC, we need the ability to specify a arbitrary sink-specific channel mapping.
Ah, sorry, this topic was canceled due to the time slot limitation. But I can bring up the topic if we get another time slot, at BoF or whatever.
Takashi