[alsa-devel] About HDMI audio driver

Wei Ni wni at nvidia.com
Tue Dec 29 08:56:32 CET 2009

Hi, Takashi
I'm a nvidia engineer. We plan to develop the new hdmi audio driver for the new chipset. It support the latest HD Audio Specification.
I download the latest kernel source, it has patch_intelhdmi.c. And this file have many defines and routines for HDMI operations.
If I develop hdmi driver, it also need to define the same functions in patch_nvhdmi.c, it seems not very well.
Do you have plan to change these codes to common code?  I think these codes are common for HDMI audio.

BTW I have a another question.
Because the standard ALSA channel mapping is different with the Windows setting. So  we could use channel-slot assignment (verb 0x734) to fix.
How can I know the audio is using ALSA setting or Windows setting? Does there have any mechanism to support this operation?


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