2 Apr
2005
2 Apr
'05
6:27 p.m.
Lee,
According to the kernel developers this is indeed the
kernel's fault.
On Wed, 2005-03-30 at 14:57 -0800, David Brownell wrote:
"Well, I'd not yet expect USB audio to work over EHCI quite
yet, though one of the patches Greg just posted should help
some of the issues with full speed iso through USB 2.0
hubs. (At least for OUT transfers as to speakers.)"
Thanks a lot for these infos.
Please try this patch against 2.6.12-rc1:
http://cache.gmane.org//gmane/linux/usb/devel/33380-001.bin
well, did last a while. I'm not that familiar with kernel
building. But a friend was helpful, so I have now
Linux Grandevitesse 2.6.12-rc1-ce #1 SMP Sat Apr 2 22:59:58
CEST 2005 i686 Intel(R) Pentium(R) 4 Mobile CPU 1.60GHz
GenuineIntel GNU/Linux
installed. Unfortunately, it doesn't change anything
concerning the usb_audio behaviour. I get notches every 3 to
7 seconds again caused by xruns.
Except, OTOH, I did something wrong when patching (sorry for
my ignorance). Can I somehow check if the patch has been
applied successfully by probing the current running kernel? A
location in /proc probably?
Thanks a lot & best regards
ce