[Alsa-user] USB audio device problem in ALSA 1.0.23

Hello.

I am testing a new USB audio interface called the Ebox44 by Electrix. 
It's based on a TUSB3200A chip. But when I plug it in, dmesg shows:

[  133.992032] usb 3-1: new full speed USB device using ohci_hcd and 
address 2
[  134.235928] usb 3-1: New USB device found, idVendor=200c, idProduct=1018
[  134.235935] usb 3-1: New USB device strings: Mfr=1, Product=2, 
SerialNumber=4
[  134.235939] usb 3-1: Product: Ebox44
[  134.235942] usb 3-1: Manufacturer: ELECTRIX
[  134.235945] usb 3-1: SerialNumber: 20101128
[  134.236181] usb 3-1: configuration #1 chosen from 1 choice
[  137.792271] usbaudio: unit 2 not found!
[  137.792337] snd-usb-audio: probe of 3-1:1.0 failed with error -5
[  137.792403] usbcore: registered new interface driver snd-usb-audio

...and aplay -l does not list the device at all.

I'm using Linux kernel 2.6.32-5-686 and also tested on 2.6.39 and 3.0.0 
with the same exact results. I also tried:
- editing /etc/modprobe.d/alsa-base.conf: (rebooting after each change)
	- changing options snd-usb-audio index= to 0
	- commenting out the snd-usb-audio index line
	- adding snd-intel8x0=-2 and 0 (the driver for my on-board sound card)
- modprobe -r snd_intel8x0 before plugging in the device
- editing /etc/modprobe.d/aliases.conf and adding aliases for 
snd-usb-audio to snd-card-0 and snd-intel8x0 to snd-card-1

Nothing helped. I got the same kernel error and the card is missing in 
aplay -l every time.

What else can I try?

Thank you very much for your time.

Sincerely,
Sean M. Pappalardo
"D.J. Pegasus"
Mixxx Developer - Controller Specialist
http://www.mixxx.org/