[alsa-devel] FIXME for Rear Channels of CMI8738, how do i write a softvol to fix this defect?
John L. Utz III
john.utz at dmx.com
Mon May 7 23:10:18 CEST 2007
the CMI8738 allows for 4 channel output by providing a second DAC, but
sadly the hardware has no volume control for said second DAC.
A review of /usr/share/alsa/cards/CMI8738-MC6.conf shows that the
implementor of said file was aware of the need to fix the problem:
# 2nd DAC
# FIXME: we need a volume attenuator for rear channel.
@args [ CARD ]
I'd really like to fix this!
Is it fixable by creating a softvol plugin?
if so, can i have a hint? :-)
so, if i have to invoke speaker test with -Dhw:0,1 to get 4 channel
out, what does that tell me about how i need to configure a softvol for
Or am i missing the point and it's actually the *driver* that needs to
be doctored up to provide a softvol implementation. If so, how?
More information about the Alsa-devel