Compiling new kernel for Tascam US-122l

**daggedog** · September 5th, 2009

drfunkenkeys. I have tried AV Linux and us-122l. It worked with jack, and I used Briata's instructions http://wiki.briata.org/doku.php?id=t...2l_under_linux Remember to install alsa-plugins (libasound2-plugins) in debian. And it is easier if you use the jack GUI qjackctl.
The reason I tried AV Linux is that it is impossible to install nvidia drivers with realtime kernel in Ubuntu Studio, 2.6.31-1-rt. I really liked AV Linux, but hmm.. LXDE or XFCE, a bit strange, even though less resources are used. (LXDE, too primitive for my taste. XFCE, not able to single click by default on XFCE desktop, can do so with nautilus, but then some of the advanges of XFCE goes away, so I have to switch between thunar and nautilus. I am a KDE fan, and I really want to single click on my desktop!)

**MigBc** · September 22nd, 2009

Hi,

I just submitted a patch that makes US-144 work when ehci-hcd is disabled:

http://mailman.alsa-project.org/pipe...er/021363.html

If you can't rmmod ehci-hcd, that is because it is build into the kernel. You then have to recompile the kernel with ehci-hcd as a module.

Regards,
Tobias

EDIT: Installation instructions for US-144 on Ubuntu

**90Brougham350** · February 13th, 2010

I'm glad I found this thread! I bought the US-144l a few weeks ago. I'm running a dual-boot with Vista because my wife needs it for work every now and then. I had absolutely no luck getting the unit to work with Windows, the version of Cubase LE4 that came with the interface would not register, and crashed every time I used it. I found Briata's page and tried to follow the instructions but I am a total noob with linux, and couldn't really follow them or do what they were telling me to do. I've been using Ubuntu for years pretty much as a music and internet machine, but really want to get the unit to work with Ardour. Are there some very simple step-by-step instructions that a guy like me could use? I'm running Ubuntu Studio 9.10. Thanks!

Brian

**kurt.** · February 20th, 2010

hi
i followed different instructions i found on the web for installing the us-144 under ubuntu. (i just posted the following somewhere else on this forum but cannot find it anymore)

i downloaded the us-122l firmware with the synaptic-packet-manager, upgraded alsa with the script i found here and did

Code:

kurt@kurt-laptop:~$ sudo modprobe snd-usb-audio
kurt@kurt-laptop:~$ echo -n 0000:00:1d.7 | sudo tee -a /sys/bus/pci/drivers/ehci_hcd/unbind

after that (loading the module and disabling usb 2) i plugged the interface out and in again and the us-144 was recognized as us-122l under usb 1...

Code:

kurt@kurt-laptop:~$ cat /proc/asound/cards
 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xf7ff8000 irq 31
 1 [US122L         ]: USB US-122L - TASCAM US-122L
                      TASCAM US-122L (644:800f if 0 at 008/008)
kurt@kurt-laptop:~$ cat /proc/asound/modules
 0 snd_hda_intel
 1 snd_usb_us122l

the problem is, that somehow still the thing doesn't work.
i created the right .asoundrc file, but jackd seems not to be able to handle the us-144:

Code:

kurt@kurt-laptop:~$ sudo jackd -RP50 -dalsa -dusb_stream:1 -r44100 -p64 -n2no message buffer overruns
jackd 0.116.1
Copyright 2001-2005 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

JACK compiled with System V SHM support.
loading driver ..
SSE2 detected
apparent rate = 44100
creating alsa driver ... usb_stream:1|usb_stream:1|64|2|44100|0|0|nomon|swmeter|-|32bit
ALSA lib control.c:902:(snd_ctl_open_noupdate) Invalid CTL usb_stream:1
control open "usb_stream:1" (No such file or directory)
configuring for 44100Hz, period = 64 frames (1.5 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 24bit little-endian
ALSA: use 2 periods for capture
Couldn't configure usb_stream
: Invalid argument
ALSA: cannot set hardware parameters for capture
ALSA: cannot configure capture channel
cannot load driver module alsa

the test with aplay is not working either, but thats maybe a different problem:

Code:

kurt@kurt-laptop:~$ aplay -MDusb_stream:1 -fS24_3LE -r44100 -c2 -twav --period-size=640 ~/testing.wav
Warning: format is changed to S16_LE
Playing WAVE '/home/kurt/testing.wav' : Signed 16 bit Little Endian, Rate 11025 Hz, Mono
aplay: set_params:990: Sample format non available
Available formats:
- S24_3LE

i see the tascam in qjackctl ---> connections only under alsa as

20:TASCAM US-122L
---> 0:TASCAM US-122L MIDI 1

but i can't connect it.

qjackctl 'messages' output:

Code:

 p, li { white-space: pre-wrap; }  15:29:46.230 /usr/bin/jackd -R -dalsa -dhw:1 -r44100 -p1024 -n2
 15:29:46.233 JACK was started with PID=2622.
 no message buffer overruns
 jackd 0.116.1
 Copyright 2001-2005 Paul Davis and others.
 jackd comes with ABSOLUTELY NO WARRANTY
 This is free software, and you are welcome to redistribute it
 under certain conditions; see the file COPYING for details
 JACK compiled with System V SHM support.
 loading driver ..
 SSE2 detected
 apparent rate = 44100
 creating alsa driver ... hw:1|hw:1|1024|2|44100|0|0|nomon|swmeter|-|32bit
 control device hw:1
 ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode
 cannot load driver module alsa
 15:29:46.279 JACK was stopped successfully.
 15:29:46.279 Post-shutdown script...
 15:29:46.279 killall jackd
 15:29:46.432 ALSA connection change.
 jackd: no process found
 15:29:46.688 Post-shutdown script terminated with exit status=256.
 15:29:48.438 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.

auszug aus dmesg:

Code:

[  249.795296] ehci_hcd 0000:00:1d.7: remove, state 1
[  249.795310] usb usb2: USB disconnect, address 1
[  249.795313] usb 2-5: USB disconnect, address 2
[  249.877131] ehci_hcd 0000:00:1d.7: USB bus 2 deregistered
[  249.877217] ehci_hcd 0000:00:1d.7: PCI INT A disabled
[  250.160090] usb 8-1: new full speed USB device using uhci_hcd and address 6
[  250.311865] usb 8-1: not running at top speed; connect to a high speed hub
[  250.436934] usb 8-1: configuration #1 chosen from 1 choice
[  250.445887] uvcvideo: Found UVC 1.00 device CNF7129 (04f2:b071)
[  250.469945] input: CNF7129 as /devices/pci0000:00/0000:00:1d.2/usb8/8-1/8-1:1.0/input/input10
[  250.592542] usb 8-2: new full speed USB device using uhci_hcd and address 7
[  265.710082] usb 8-2: device descriptor read/64, error -110
[  273.560148] hub 8-0:1.0: unable to enumerate USB device on port 2
[  277.070116] usb 8-2: new full speed USB device using uhci_hcd and address 8
[  277.216426] usb 8-2: not running at top speed; connect to a high speed hub
[  277.243535] usb 8-2: configuration #1 chosen from 1 choice
[  278.730661] usbcore: registered new interface driver snd-usb-us122l
[ 2216.940044] CE: hpet increasing min_delta_ns to 15000 nsec
[ 3876.029937] usbcore: registered new interface driver snd-usb-audio

thanks for help with the next steps or ideas.