Hi Ed, I have duplicated your problem with the Dell keyboard. I then connected a Logitech keyboard and that worked. I added a bunch of debug messages to track what was going on and I ended up in the function usb_find_interface_driver(...) in usb.c.
As far as I can tell, both keyboards are recognized by usb_match_id(...) in usb.c. In the inner loop of that function; 728 id = usb_match_id(dev, interface, id); 729 if (id) { 730 down(&driver->serialize); 731 private = driver->probe(dev,ifnum,id); 732 up(&driver->serialize); 733 if (private != NULL) 734 Break; 735 } 736 For the Logitec keyboard, the usb_match_id(...) eventually finds a match and then calls driver->probe - Result of Logitec probe - keybdev_connect in drivers/usb/keybdev.c keybdev.c: Adding keyboard: input1 input: USB HID v10.01 Keyboard [Logitech Logitech USB Keyboard] on usb1:4.0 usb: usb_find_interface_driver in drivers/usb/usb.c ... and then claims the interface in usb_driver_claim_interface(...) For the Dell keyboard, the usb_match_id(...) eventually finds a match and then calls driver->probe. But in this case, the probe function returns a null and the driver never claims an interface. I got a little bit stuck after that. I have not figured out how the probe function works so I was not able to dig deeper. I do believe that in both cases, the driver name is 'hid' and the id is 0xC02315BC. I was wondering if anyone else knows how to connect a Dell keyboard to this driver or why it is not accepted by this driver. Until then, I'm off to 'Keyboards Etc.' to get a Logitech keyboard. Regards, Michael Carey _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded