Subject: Re: [linux-audio-user] Mixer settings
From: Clemens Ladisch (clemens_AT_ladisch.de)
Date: Wed Dec 01 2004 - 20:40:06 EET
Christoph Eckert wrote:
> > USB devices have descriptors that describe all mixer
> > controls and their routing. You can find this information
> > in the output of "lsusb -v" if you know what to look for.
>
> Phew, thanks a lot for this hint. Lots of output to read, but
> otherwise it seems to offer all info I'd like to know.
Quick guide:
The bXxxxxID and bSourceID fields specify how the units/terminals are
connected together.
In the bmaControls field, index 0 has controls acting on all channels,
while index 1 and greater specify controls acting on that specific
channel only.
HTH
Clemens
This archive was generated by hypermail 2b28 : Wed Dec 01 2004 - 20:44:55 EET