[alsa-devel] usbaudio: Support for USB audio v2.0 devices

[Daniel Mack]

On Tue, May 18, 2010 at 10:07:57AM +0300, adelias wrote:
> On 4/5/2010 1:48 μμ, Daniel Mack wrote:
> > On Mon, May 03, 2010 at 03:49:05PM +0300, adelias wrote:
> >> On 27/4/2010 5:06 μμ, Daniel Mack wrote:
> >>> What specific configuration are you testing with? As you have such an
> >>> evaluation kit, I believe you're also provided with the XMOS development
> >>> platform - which firmware did you install to the board?
> >>>
> >>> Daniel
> >>
> >> Firmware is on 1v2. I'm not getting clicks on OSX 10.6.2 or Windows
> >> 7 with the ASIO driver.
> >
> > Well, at least for OS X 10.6.2, there are problems in the class driver.
> > Do some long-time measurements with inputs and outputs to meet them.
> >
> > I would also suggest to try a newer firmware, 1v2 is rather old. If you
> > still happen to have problems, let me know and I'll have another look.
> >
> > Ironically, things don't work for me anymore currently with the Linux
> > master git + sound-2.6. I'm getting XActErrors all over the place, but
> > that's most probably not related to the driver itself but some
> > regression in the Linux USB stack I believe. Could you try that as well?
> >
> > Thanks,
> > Daniel
> >
> 
> After upgrading XMOS firmware to 1v5, although the board is recognized, 
> it no longer functions with alsa. Also needs to be reset before it is
> recognized in Windows.

Jup. I believe this is a firmware bug though, but I need to investigate
again. Just to make sure you're seeing the same kind of error, could you
send me your dmesg output that is produced when the device is plugged
in?

Thanks,
Daniel