agd@minerva:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC887 Analog [ALC887 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC887 Digital [ALC887 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Interface [Schiit USB Interface], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Interface [Schiit USB Interface], device 1: USB Audio [USB Audio #1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Interface [Schiit USB Interface], device 2: USB Audio [USB Audio #2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 7: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 8: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: NVidia [HDA NVidia], device 9: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
Thank you all for your hard work to get usb 2.0 working, I'm very excited to listen!
On Thu, Nov 3, 2011 at 9:34 AM, Andrew Dunn <andrew.g.dunn@xxxxxxxxx> wrote:
Thank you Clemens.I will try the same dac on my fedora 16 laptop which is in the 3 series.I really appreciate your quick response, at first I was quite surprised that it wasn't working but it makes sense now!
On Thu, Nov 3, 2011 at 4:15 AM, Clemens Ladisch <cladisch@xxxxxxxxxxxxxx> wrote:Andrew Dunn wrote:This is a USB Audio 2.0 chip.
> The Schiit Bifrost uses a C-Media 6631,
(The USB Audio specification is separate from the USB specification, and
almost all USB audio devices still use the 1.0 audio spec because that
is what Windows supports. However, this chip is beginning to show up
in many newer devices, so we are very interested in making sure that
this chip is supported completely.)
> $ uname -r
> I'm using this with ubuntu 10.04:
>
> 2.6.32-34-generic-pae
The first USB Audio 2.0 support was added in kernel 2.6.35; you need
at least Ubuntu 10.10 (and a newer one wouldn't hurt).
That old lsusb doesn't know about audio 2.0 descriptors either.
Regards,
Clemens
Andrew Dunn
248.238.8649
http://agdunn.net
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