On Sat, 30 Oct 2010, Daniel Stöckner wrote: > Three periodic files are attached. "4+0" is 4 mono inputs simplex, "0+2" > is stereo output simplex and "4+2" contains periodic (~100 milliseconds) > copies from the periodic file, when starting the soundcard in "4+2" > mode, which fails. Maybe it helps... Unfortunately these files don't contain very much information. I'll have to write a patch for you to try in order to get more. But first, are you running with CONFIG_USB_DEBUG enabled? If not, you should build a kernel with it turned on. Then the dmesg log for the 4+2 case should contain some interesting debugging messages. Also, you should make sure you're using a 2.6.36 kernel because it contains some changes to the periodic scheduling in ehci-hcd. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
