Hi, > Furthermore, the patch shows that the second-to-last argument to > usb_fill_bulk_urb() -- the completion function -- is NULL. That is > strictly illegal and it should have caused an oops as soon as the URB > was used. Then there's definitely a WARN_ON or so missing in static inline void usb_fill_bulk_urb() And highly likely more checks in those areas that are causing my (and other people's) ftdi_sio tests and USB audio (MIPS mmap) to fail. Followup soon. Andreas Mohr -- 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