chill wrote: > But it works on the Macbook. I wonder if different chipsets handle the > link negotiation differently. Maybe the Pi uses only a fixed data rate, > whereas the Macbook might do some sort of adaptive rate? Is that > possible?
Yes - the loose +5v wired seemed to be the obvious candidate for a source of problems. The dmesg log seems shows the problem to be initial connection of device. The vendor and device id of the device were not even obtained so the Pi could not even identify what sort of USB device has been attached. So problem is in early stages of connection. There are 4 wires. Two signal wire D+ and D- provide differential signalling. As I understand it, the signals at idle are pulled down by host but when a device connects to host, the device pulls one of them up with a 1.5kOhm resistance. Could there be some problem with this resistance value between Pi and cable ? ------------------------------------------------------------------------ bpa's Profile: http://forums.slimdevices.com/member.php?userid=1806 View this thread: http://forums.slimdevices.com/showthread.php?t=113997 _______________________________________________ discuss mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/discuss
