Am Donnerstag, 3. September 2009 23:59:02 schrieb Andrew Morton: > > usb 3-2: new full speed USB device using uhci_hcd and address 39 > > usb 3-2: New USB device found, idVendor=20df, idProduct=0001 > > usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > > usb 3-2: Product: Entropy Key > > usb 3-2: Manufacturer: Simtec Electronics > > usb 3-2: SerialNumber: OQBuBlg0MTFBVxZD > > usb 3-2: configuration #1 chosen from 1 choice > > cdc_acm 3-2:1.0: This device cannot do calls on its own. It is not a > > modem. cdc_acm 3-2:1.0: ttyACM0: USB ACM device > > > > # cat /dev/ttyACM0 > > cat: /dev/ttyACM0: Input/output error > > > > This device works in 2.6.30, but is broken in 2.6.31-rc1 and following. Please provide lsusb -v? Anything in the syslog? Please do an strace. I'd like to know whether it errors in open or read. 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
