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
