I can confirm that upon installing a 2.6.35 series kernel on my system I
was able to address the device:
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.d...@gmail.com> 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
> <cladi...@googlemail.com>wrote:
>
>> Andrew Dunn wrote:
>> > The Schiit Bifrost uses a C-Media 6631,
>>
>> This is a USB Audio 2.0 chip.
>>
>> (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.)
>>
>> > I'm using this with ubuntu 10.04:
>> >
>> > $ uname -r
>> > 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).
>>
>> > Here is a gist of an lsusb -v: https://gist.github.com/1335351
>>
>> That old lsusb doesn't know about audio 2.0 descriptors either.
>>
>>
>> Regards,
>> Clemens
>>
>
>
>
> --
> Andrew Dunn
> 248.238.8649
> http://agdunn.net
>
>
--
Andrew Dunn
248.238.8649
http://agdunn.net
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