[alsa-devel] dma buffer format

[Takashi Iwai]

At Mon, 16 Feb 2009 16:21:59 -0600,
York Sun wrote:
> 
> Takashi,
> 
> I am now working on a surround sound driver for the first time. I am
> confused by the packed format of dma buffer. If the channel number is 6,
> is the buffer filled with data as
> 
> front left, front right, rear left, rear right, center, LFE
> 
> or
> 
> front left, rear left, center, front right, rear left, LFE?

It's supposed to be FL/FR/RL/RR/C/LFE.
That's so to be consitent with 4 channels (just cut the last two
channels).


Takashi