Am Mittwoch, den 11.10.2017, 11:10 +0300 schrieb Maksim Salau: > Elatec TWN3 has the union descriptor on data interface. This results in > failure to bind the device to the driver with the following log: > usb 1-1.2: new full speed USB device using streamplug-ehci and address 4 > usb 1-1.2: New USB device found, idVendor=09d8, idProduct=0320 > usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > usb 1-1.2: Product: RFID Device (COM) > usb 1-1.2: Manufacturer: OEM > cdc_acm 1-1.2:1.0: Zero length descriptor references > cdc_acm: probe of 1-1.2:1.0 failed with error -22 > > Adding the NO_UNION_NORMAL quirk for the device fixes the issue. > > Signed-off-by: Maksim Salau <msa...@iotecha.com> Acked-by: Oliver Neukum <oneu...@suse.com>
