| #!/bin/sh |
| |
| # Copyright 2018 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. |
| |
| . /usr/share/misc/shflags |
| |
| DEFINE_string 'device' '' "i2c device name" 'd' |
| |
| WACOMFLASH="/usr/sbin/wacom_flash" |
| GET_TOUCH_HWID="-h" |
| |
| # Parse command line. |
| FLAGS "$@" || exit 1 |
| eval set -- "${FLAGS_ARGV}" |
| |
| # Use "wacom -h" to get the HWID stored in either the wacom bootloader |
| # (tried first), or the firmware (tried next by wacom_flash utility). |
| main() { |
| # Query the touchscreen and get the hardware id (vendor_id+product_id). |
| local hardware_id="" |
| |
| hardware_id="$( |
| minijail0 -S /opt/google/touch/policies/wacom_flash.query.policy \ |
| "${WACOMFLASH}" "dummy_unused_argument" "${GET_TOUCH_HWID}" \ |
| "${FLAGS_device}" 2>/dev/null |
| )" |
| |
| if [ "$?" -eq 0 ] && [ "${hardware_id}" != "0000_0000" ]; then |
| echo "${hardware_id}" |
| fi |
| } |
| |
| main "$@" |
