Romain Michon wrote: > I'm trying to use two audio interfaces (Guitar Link UC6102) in > parallel in Alsa on a UDOO board that runs Ubuntu. The two interfaces > are connected on the two USB 2.0 port available on the board: I'm not > using any hub. In 20% of the cases, this works fine and I'm able to > use the two interface as one single "virtual" interface with 4 inputs > and 4 outputs (see my .asoundrc file bellow). So the hardware actually supports the required bandwidth. > However, in 80% of the cases, this doesn't work and dmesg says: > "cannot submit datapipe for urb 0, error -28: not enough bandwidth". Sounds like a bug in the USB controller driver of your board. Regards, Clemens _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
