Hi I have the same kind of trouble with a camsports evo .. disconnect after 2 seconds. However the delay_use trick did not improve things here. How shall I activate usb debugging to produce a relevant information ? Thx (usb id is 0851:1542) Dec 25 01:08:49 hp kernel: [ 1467.551552] usb 2-2: new high speed USB device using ehci_hcd and address 15 Dec 25 01:08:49 hp kernel: [ 1467.705292] usb 2-2: configuration #1 chosen from 1 choice Dec 25 01:08:51 hp kernel: [ 1469.794432] usb 2-2: USB disconnect, address 15 -- 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