william estrada wrote: > Yan, > > While I am not an expert, I do have a little experience with one USB > sound device (SB). > > First, asoundconf does not support USB devices. > > Second, the USB devices are assigned their ID in the order they are > seen. The first one plugged in will be the first one assigned either > /dev/dspX (OSS) or plughw:X,Y (ALSA). You can find your USB SB with > > 'cat /proc/asound/cards' > > Mine shows: > >> $ cat /proc/asound/cards >> 0 [A5451 ]: ALI5451 - ALI 5451 >> ALI 5451 at 0x1400, irq 11 >> 1 [Audio ]: USB-Audio - USB Audio >> USB Audio at usb-0000:00:13.1-2, full speed > > Your two USB SB should be seen to ALSA as -Dplughw:1 and -Dplughw:2. > The > other SB on your MB should(?) be seen as -Dhw:0 or default. You can use > aplay/arecord with the -L parm to get a display of your 'current' set up. > >> $ aplay -L >> default:CARD=A5451 >> ALI 5451, ALI 5451 >> Default Audio Device >> null >> Discard all samples (playback) or generate zero samples (capture) >> default:CARD=Audio >> USB Audio, USB Audio >> Default Audio Device > > That should get you going? > Ok, that got me a couple more questions..... How do I assign a device to a specific user/head? I have a multi-head setup in X; I have 3 sound cards, and I want to always have head 1 be assigned USB card #1, regardless of who is logged in to head 1. .asoundrc doesn't seem able to either a) force the use of a specific card (it uses card 1 - but card 1 can move around; I want to always use the USB card that's plugged into port blah. or b) use a card that's assigned to that head. (I haven't even figured out how to approach this....) Any suggestions? ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
