Tascam USB US-122L - Does yours work with Ubuntu 9.04?

veezee · 09-14-2009, 03:50 PM

I have searched for days (everything below is from what I have gathered from docs and implemented. Please, anything that you might think I am missing would be a great deal of help. I am at my wits end and ready to kick ubuntu out the window!

Here is what I have so far..

-lsusb detects card (although it says Teac)
-Anything pre- 2.6.29RC3 - Issues w/ USB2.0 + US-122L , this was fixed by patching EHCI-HCD.
-cat /proc/asound/modules and cards show the US-122L detected
-On board card - disabled for sake of troubleshooting (but normally works)
-I am currently using 1.18 version of Alsa (stock w/ Ubuntu 9.04), compiled as modules within kernel config - along with the general sound config. (obviously because the onboard sound works) - I have read to disable OSS - but have not done this yet.

-Doing aplay -l shows something pcm_ctrl_open next (rather then the US122L as being available)

-alsamixer says "no mixer elements" (but works fine with onboard)
-tried different USB ports

So, my question to anyone who has this working (either as a dual card or single setup).. What version of alsa? what kernel options do you have compiled regarding sound? Is there something that may be conflicting? What does your .asoundrc look like? How is your kernel config looking? Did you compile the newest alsa? I am hoping someone can help me out on this.. please

Thank you in advance

cladisch · 09-15-2009, 09:04 AM

Quote:

-lsusb detects card (although it says Teac)

"Tascam" is a Teac brand.

Quote:

-Doing aplay -l shows something pcm_ctrl_open next (rather then the US122L as being available)

The actual error message might have been helpful.

AFAIK the US-122L driver does not implement standard PCM devices, so it doesn't show up in the "aplay -l" output. Try the usb_stream plugin (I don't know where this is documented).

Quote:

-alsamixer says "no mixer elements"

This device has no software-accessible mixer controls.

veezee · 09-15-2009, 10:46 AM

Quote:

Originally Posted by cladisch

"Tascam" is a Teac brand.

The actual error message might have been helpful.

AFAIK the US-122L driver does not implement standard PCM devices, so it doesn't show up in the "aplay -l" output. Try the usb_stream plugin (I don't know where this is documented).

This device has no software-accessible mixer controls.

Ok , so for shits and giggles, I installed a copy of Mandriva 2009. What a world of a difference as far as this device goes.

-it detects PROPERLY and shows all info (serial # , brand, model etc) in dmesg where ubuntu just showed "device on ehci-hcd deteced ... us122l)
-lsusb shows the the device listed
-cat /proc/asound/modules, cards show US122L

The only thing I am having trouble with is telling Mandriva to use Alsa over Pulse. When I do a aplay -l it just says "hardware devices available" with nothing else and mandriva's hardware/sound config in the control center shows no devices listed.

Also, when I run alsa start - it says drivers loaded. lsmod looks to have everything. So now, I think it is a config issue w/ mandriva and getting to use alsa.

Any ideas on how to do this?

cladisch · 09-16-2009, 02:08 AM

Quote:

When I do a aplay -l it just says "hardware devices available" with nothing else and mandriva's hardware/sound config in the control center shows no devices listed.

You still have to configure the usb_stream plugin.

According to Google, you have to put the following into your ~/.asoundrc or /etc/asound.conf:

Code:

pcm.usb_stream {
	@args [ CARD ]
	@args.CARD {
		type string
		default "0"
	}
	type usb_stream
	card $CARD
}

Then you have to tell your application to use the "usb_stream" device name. If your US-122L isn't card 0, use "usb_stream:x".

veezee · 09-30-2009, 11:54 PM

*bump*

I am still having trouble getting this setup.. ubuntu is detecting the card (lsusb and cat /proc/asound/cards , modules both show the device) , but I am really lost at the alsa config files, module conf files etc. can someone with a working US122L give me a hand?

Thanks

veezee · 10-02-2009, 11:04 PM

*bump*