On Sat, 2015-01-17 at 00:06 +0100, Henri Manson wrote: > I figured out how to get debug output, enclosed the results. How can I > get usbserial debug output on Ubuntu 9.04? It appears it wasn't a > module yet back then. > > out-crash: debug output form Ubuntu 14.04.1 which causes the Palm m505 to crash > out: debug output form Ubuntu 9.04 which works fine > > probe string on 9.04 and 14.04 is different: > > 9.04: > [ 640.784916] usb 2-2: palm_os_4_probe - length = 20, data = 01 00 00 > 00 63 6e 79 73 02 00 00 00 00 03 f3 5c 05 03 00 03 > > 14.04.1: > [ 1685.194594] usb 8-2: palm_os_4_probe - length = 20, data = 01 00 00 > 00 63 6e 79 73 02 00 00 00 01 36 00 5c 00 00 00 09 This comes from the device. The crashing log shows the machine sending AT<CR> in a very inefficient manner. You could get a usbmon trace for the older kernel and the newer kernel. That should serve almost as well for this purpose. Regards Oliver -- 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