Arch and Tascam US-122L USB 2.0 Sound Card

Question

Hello,
I recently tried using my Tascam US-122L sound card, but I am not aware if there is support on linux for it or not. I tried the AUR, but it gave me information about a different Tascam card. I found this website which is interesting but must be outdated:
http://www.pps.jussieu.fr/~smimram/tascam/
I did a simple lsusb and the card seems to be recognised correctly by the system:
Bus 002 Device 007: ID 0644:800e TEAC Corp. TASCAM US-122L
but alsamixer gives me the message:
"This sound device does not have any controls."
and the device is not chosen (sound is coming out of the original speakers instead of the US-122L Phones output).
Maybe I am just failing to switch to the card? Any help would be appreciated.
Thanks in advance,
silentz0r

Answer 1

This soundcard is supposed to work ootb, there's a kernel module just for this card.
% modinfo snd-usb-us122l
filename: /lib/modules/2.6.39-ck/kernel/sound/usb/usx2y/snd-usb-us122l.ko.gz
license: GPL
description: TASCAM US-122L Version 0.5
author: Karsten Wiese <[email protected]>
alias: usb:v0644p8020d*dc*dsc*dp*ic*isc*ip*
alias: usb:v0644p8021d*dc*dsc*dp*ic*isc*ip*
alias: usb:v0644p800Fd*dc*dsc*dp*ic*isc*ip*
alias: usb:v0644p800Ed*dc*dsc*dp*ic*isc*ip*
depends: snd-usbmidi-lib,snd,usbcore,snd-hwdep
vermagic: 2.6.39-ck SMP preempt mod_unload PENTIUMM
parm: index:Index value for US-122L. (array of int)
parm: id:ID string for US-122L. (array of charp)
parm: enable:Enable US-122L. (array of bool)
The controls (e.g. volume etc.) are hardware controls, so there's nothing to be done for the software. That's why alsamixer shows this message. In order to get any sound, you have to either configure this soundcard to be the default one(*), or you have to tell the player to use this soundcard(**).
(*) There is a gui which can do this for you quite easily, it's called asoundconf, you can find it in the AUR.
(**) You can do this e.g. with mplayer like this
mplayer file.end -ao alsa:device=plughw=2.0
Last edited by Army (2011-08-21 01:27:12)