Re: [Alsa-devel] Problems with Hercules DJ Console and the usb-audio driver
On Wed, Sep 14, 2005 at 03:29:13PM +0200, Daniel Svensson wrote:
> CONFIG_USB_BANDWIDTH is enabled by default in the debian kernel. Could
> this be changed? According to the alsa developer who helped me debug the
> problem with my usb soundcard CONFIG_USB_BANDWIDTH should be disabled.
> The original email is forwarded here:
That sounds fair enough to me, as long there are no objections
from the rest of the kernel-team.
Clemens, could you provide a little more information on
the problems that CONFIG_USB_BANDWIDTH causes?
> ----- Forwarded message from Clemens Ladisch <firstname.lastname@example.org> -----
> From: Clemens Ladisch <email@example.com>
> To: Daniel Svensson <firstname.lastname@example.org>
> Subject: Re: [Alsa-devel] Problems with Hercules DJ Console and the usb-audio
> Daniel Svensson wrote:
> > Here is the output of "amixer scontents":
> > ...
> > Which doesn't match alsamixer controls very well (in count and names).
> What is the output of "amixer contents"?
> > Ok, so some progress. The device accepts S16, 6 channels, 48kHz.
> > Still no output, fails with kernel message:
> > ALSA /hom.../usbaudio.c:807: cannot submit datapipe for urb 5, err = -28
> 28 = ENOSPC. Please disable bandwidth checking in the kernel
> configuration. (This is a bug of your distribution unless you
> compiled the kernel yourself.)
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