I wrote: > I'm not sure if this is a problem with the EHCI driver or your USB > controller, Okay, I found two bugs in the EHCI driver that explain all your problems. Apparently, these bugs show up only if the USB host controller issues interrupts not for every completed microframe; you seem to be the only one with such hardware. I've CC'd you on the patches; holler if you need entire files. Regards, Clemens _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user