On Fri, Dec 4, 2009 at 9:31 AM, John S Gruber <johnsgruber@xxxxxxxxx> wrote: > I produced the dump of URB sizes you requested by adding that printk() line. The > results are at http://pastebin.com/f26f29133 Hi John, This is good info (especially since you have kernel timestamps enabled). Did you have a specific reference to the USB audio spec which said the packet size has to be on an integer boundary? I took a look at the spec last night and didn't see anything to that end. Do you have a proposed patch to usbaudio.c which "works for you"? If so, feel free to send it along and I will review and provide comments. If the spec does not require the packets to be on an integer boundary, perhaps the driver just improperly assumes they will be (and they were for whatever developer wrote the original code). Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html