Hi, Alan Stern wrotes: > It seems clear that your device is sending an invalid CRC or packet > termination. There's no way to tell exactly what's wrong without > seeing the information from the logic analyzer. Is your device running at full speed (12 MBit/s)? If yes, can you check if there are any common mode chokes at the D+ and D- lines of your device, and if yes - do a test with removed chokes? The EOP condition is a 2-bit-long common mode signal, and if you really need a common mode choke for 12 MBit/s, you have to use a 4-wire choke with VCC and GND included. Regards, Wolfgang -- 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