Am Dienstag, 2. Februar 2010 15:42:49 schrieb Clemens Ladisch: > > Or... usb-audio? I should have verified that it is using bulk endpoints > > (and thus the patch applies to my case). > > usb-audio probably uses isochronous transfers, thus that would be > > an obvious reason why the patch didn't work for me. > > snd-usb-audio indeed uses isochronous transfers, but those buffers are > never mapped into user space. The intermediate vmalloc()ed buffer is, > however, and there was a bugfix for this recently. Do you have these > patches in your tree? Now that I think about it, several video drivers do map it to user space. Regards Oliver -- 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