USB audio 2.0 testers wanted

Patrick Lamaiziere patfbsd at
Fri Nov 9 17:00:11 UTC 2012

Le Thu, 8 Nov 2012 08:16:56 +0100,
Hans Petter Selasky <hselasky at> a écrit :


> If you have a USB audio 2.0 device laying around and can boot your
> box from a FreeBSD memory image I would like to get in touch with you.

Hmmm, How we know if a device is audio 2.0?

I've got this uaudio :
ugen0.3: <Burr-Brown from TI> at usbus0
uaudio0: <Burr-Brown from TI USB Audio CODEC, class 0/0, rev 1.10/1.00, addr 3> on usbus0
uaudio0: Play: 48000 Hz, 2 ch, 16-bit S-LE PCM format.
uaudio0: Record: 48000 Hz, 2 ch, 16-bit S-LE PCM format.
uaudio0: No midi sequencer.
pcm3: <USB audio> on uaudio0

# usbconfig -u 0 -a 3 dump_device_desc
ugen0.3: <USB Audio CODEC Burr-Brown from TI> at usbus0, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON

  bLength = 0x0012 
  bDescriptorType = 0x0001 
  bcdUSB = 0x0110 
  bDeviceClass = 0x0000 
  bDeviceSubClass = 0x0000 
  bDeviceProtocol = 0x0000 
  bMaxPacketSize0 = 0x0008 
  idVendor = 0x08bb 
  idProduct = 0x2904 
  bcdDevice = 0x0100 
  iManufacturer = 0x0001  <Burr-Brown from TI              >
  iProduct = 0x0002  <USB Audio CODEC >
  iSerialNumber = 0x0000  <no string>
  bNumConfigurations = 0x0001 

> I'm planning on merging USB audio v2.0 support to 9-stable and
> 8-stable, but would like to test the code a bit more before merging.


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