diff options
Diffstat (limited to 'extra/usb_serial/add_usb_serial_id')
| -rwxr-xr-x | extra/usb_serial/add_usb_serial_id | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/extra/usb_serial/add_usb_serial_id b/extra/usb_serial/add_usb_serial_id new file mode 100755 index 0000000000..ef8336afdc --- /dev/null +++ b/extra/usb_serial/add_usb_serial_id @@ -0,0 +1,32 @@ +#!/bin/sh -e +# +# Copyright 2016 The Chromium OS Authors. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. +# +# Add a USB VID:PID device ID to the usbserial list of handled devices + +if [ $# -ne 2 ]; then + echo "" + echo "Usage: $0 <VID> <PID>" + echo "" + echo "Add a USB VID:PID device identification pair to the list of devices" + echo "that usbserial will recognize. This script ensures that a device is" + echo "not added more than once." + echo "" + exit 1 +fi + +# +# Firts ensure that the usbserial module is loaded. This is required as there +# may be no other USB serial adaptor connected yet. +# +modprobe usbserial + +device_id="$1 $2" +file="/sys/bus/usb-serial/drivers/generic/new_id" + +# +# Only add the device ID pair if it isn't already in the ID list. +# +grep -q "$device_id" $file || echo $device_id > $file |