[alsa-devel] Setting audio channels on ICH5 with SALSA

Clemens Ladisch cladisch at fastmail.net
Thu Jul 12 08:36:04 CEST 2007

Fausto Carvalho Marques SIlva wrote:
> >Setting audio channels on ICH5 with SALSA generates and: EINVAL
> >Numbers of channels is 1.

The ICH5 AC97 controller does not support mono output; you must use at
least a stereo stream.

> Even getting the number of avaiable audio channels i get error: EINVAL

What function did you try to use?

> Debuging gets me to:
> params->intervals[2] =  {min = 2, max = 6, ...

It supports 2, 4 or 6 channels; this is not a single value.


More information about the Alsa-devel mailing list