Am Montag, 18. Januar 2010 21:14:16 schrieb Matthew Garrett: > drivers/usb/serial/generic.c: usb_serial_generic_write - port 0, 1565 > bytes > drivers/usb/serial/generic.c: usb_serial_generic_write - put 0 bytes > into fifo > drivers/usb/serial/generic.c: usb_serial_generic_read_bulk_callback - > port 0 If the FIFO is full we can do nothing. Please try the attached patch. Regards Oliver