Hi, > Thanks! Indeed, the req->buf pointer was the one causing the crash > problem. It happened when combining multiple 512 bytes data. I have > fixed this bug. > > Now my UDC driver is almost ready. That is probably one more SCSI > command timeout problem remaining, i am adding more printk to UDC > driver and studying it.
I am able to solve the SCSI command timeout problem by adding a code to check the hardware register busy bit continuously, in kagen2_ep_queue(): do { read_hardware_register_busy_bit } while (hardware_is_busy) however, it causes the linux prompt to be non-responsive because the checking hardware register code is run continuously. If i add a schedule() to the do-while loop, the kagen2_ep_queue() will not be continued. How to go about fixing this dilemma? thanks, victor -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html