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crankyadmin

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Registered: 2009-09-27

Posts: 117

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[HOWTO] Redirect Sound to USB sound card

Ok, I have a set of USB headphones that are superb for listening to music on. Good bass, Treble spot on as default and very comfrontable!

I hated messing around getting ALSA and in turn MPD to get them to work, so here is some udev rules that will redirect to them automagically!

KERNEL=="pcmC[D0-9cp]*", ACTION=="add", PROGRAM="/bin/sh -c 'K=%k; K=$${K#pcmC}; K=$${K%%D*}; echo defaults.ctl.card $$K > /etc/asound.conf; echo defaults.pcm.card $$K >>/etc/asound.conf'"
KERNEL=="pcmC[D0-9cp]*", ACTION=="remove", PROGRAM="/bin/sh -c 'echo defaults.ctl.card 0 > /etc/asound.conf; echo defaults.pcm.card 0 >>/etc/asound.conf'"

Add this to /etc/udev/rules.d/00_local.rules create it if it doesn't exist.

NOTE: This only works if the USB soundcard (Headphones) are plugged in after the machine is booted.

Hope this helps someone!

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