2 Mar
2006
2 Mar
'06
11:10 a.m.
----- Clemens Ladisch <clemens(a)ladisch.de> wrote:
Lee A. Azzarello wrote:
No USB hub, connected directly. The error from the kernel is:
cannot submit datapipe for urb 4, err = -28
And nothing else. I have usb bandwidth turned off in the kernel. ALSA and OSS emu drivers
will playback sound. It is only a JACK issue.
-lee
I have a Emagic emi26 usb 1.1 sound card on a
2.6.12.2 kernel I
built
myself. OSS emulation and ALSA drivers play back
sound but jackd
using
the ALSA drivers will not start. The kernel
complains about a
broken
pipe for the device.
What is the error code in the system log?
Is there a USB hub involved? 
2 Mar
2 Mar
1:04 p.m.
New subject: [linux-audio-user] jackd and usb 1.1 audio on i386 non-functional
Hi,
Lee A. Azzarello wrote:
which parameters are you using to start JACK?
48kHz, and periods/buffer = 3 seem to be preferred by USB audio devices.
There should be something about this in the archive of this list too..
sincerely,
Marije
What is the error code in the system log?
Is there a USB hub involved?
No USB hub, connected directly. The error from the kernel is:
cannot submit datapipe for urb 4, err = -28
And nothing else. I have usb bandwidth turned off in the kernel. ALSA and OSS emu drivers
will playback sound. It is only a JACK issue.
1:36 p.m.
New subject: [linux-audio-user] jackd and usb 1.1 audio on i386 non-functional
Lee A. Azzarello wrote:
----- Clemens Ladisch <clemens(a)ladisch.de>
wrote:
cannot submit datapipe for urb 4, err = -28
28 = ENOSPC (not enough bandwidth)
I have usb bandwidth turned off in the kernel.
Then try a newer kernel.
ALSA and OSS emu drivers will playback sound. It is
only a JACK issue.
Jack tries to use full duplex. Try using only playback or capture (-P,
-C).
HTH
Clemens
6843
days inactive
6843
days old
linux-audio-user@lists.linuxaudio.org
2 comments
3 participants
participants (3)
-
Clemens Ladisch -
Lee A. Azzarello -
Marije Baalman