how to get headset controls to work

["H.S." <hs.samix@gmail.com>]

Hello,

I have a Microsoft LifeChat LX 3000 USB headset. It has volume and mic
controls on it. How can I make those controls work on Debian Testing or
Unstable?

More generally, how does one go about making any such controls on USB
headsets work?

BTW, I can control its volume using "alsamixser -c 1" command in a
terminal where "1" is the card number reported by "aplay -l".

Thanks.
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