On Mo, 2018-06-11 at 12:39 +0200, Houston Yaroschoff wrote: > Uniden UBC125 radio scanner has USB interface which fails to work > with cdc_acm driver: > usb 1-1.5: new full-speed USB device number 4 using xhci_hcd > cdc_acm 1-1.5:1.0: Zero length descriptor references > cdc_acm: probe of 1-1.5:1.0 failed with error -22 > > Adding the NO_UNION_NORMAL quirk for the device fixes the issue: > usb 1-4: new full-speed USB device number 15 using xhci_hcd > usb 1-4: New USB device found, idVendor=1965, idProduct=0018 > usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > usb 1-4: Product: UBC125XLT > usb 1-4: Manufacturer: Uniden Corp. > usb 1-4: SerialNumber: 0001 > cdc_acm 1-4:1.0: ttyACM0: USB ACM device > > `lsusb -v` of the device: > > Bus 001 Device 015: ID 1965:0018 Uniden Corporation > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 2.00 > bDeviceClass 2 Communications > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 64 > idVendor 0x1965 Uniden Corporation > idProduct 0x0018 > bcdDevice 0.01 > iManufacturer 1 Uniden Corp. > iProduct 2 UBC125XLT > iSerial 3 0001 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 48 > bNumInterfaces 2 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0x80 > (Bus Powered) > MaxPower 500mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 1 > bInterfaceClass 2 Communications > bInterfaceSubClass 2 Abstract (modem) > bInterfaceProtocol 0 None > iInterface 0 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x87 EP 7 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0008 1x 8 bytes > bInterval 10 > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 1 > bAlternateSetting 0 > bNumEndpoints 2 > bInterfaceClass 10 CDC Data > bInterfaceSubClass 0 Unused > bInterfaceProtocol 0 > iInterface 0 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x81 EP 1 IN > bmAttributes 2 > Transfer Type Bulk > Synch Type None > Usage Type Data > wMaxPacketSize 0x0040 1x 64 bytes > bInterval 0 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x02 EP 2 OUT > bmAttributes 2 > Transfer Type Bulk > Synch Type None > Usage Type Data > wMaxPacketSize 0x0040 1x 64 bytes > bInterval 0 > Device Status: 0x0000 > (Bus Powered) > > Signed-off-by: Houston Yaroschoff <hstn@xxxxxxxxxx> Acked-by: Oliver Neukum <oneukum@xxxxxxxx> -- 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
