Chris Caudle wrote: > On Tue, May 22, 2018 11:40 am, Jeanette C. wrote: >> [1354175.824801] usb 1-4.1: urb status -32 > > This is the list of status codes returned, but they are symbolic, I have > not found where the numeric values are mapped to the symbolic names: > https://www.kernel.org/doc/html/v4.12/driver-api/usb/error-codes.html https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/asm-generic/errno-base.h "Endpoint stalled" means that the device refuses to send or receive data because of some error condition. In theory, this should not happend with USB MIDI, and there isn't really anything the driver can do about this. Regards, Clemens _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user