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#!/usr/bin/env python3
# vim: set expandtab shiftwidth=4:
# -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
#
# Copyright © 2018 Red Hat, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the 'Software'),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice (including the next
# paragraph) shall be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
import argparse
import sys
try:
import pyudev
except ModuleNotFoundError as e:
print("Error: {}".format(str(e)), file=sys.stderr)
print(
"One or more python modules are missing. Please install those "
"modules and re-run this tool."
)
sys.exit(1)
def list_devices():
devices = {}
context = pyudev.Context()
for device in context.list_devices(subsystem="input"):
if (device.device_node or "").startswith("/dev/input/event"):
parent = device.parent
if parent is not None:
name = parent.properties["NAME"] or ""
# The udev name includes enclosing quotes
devices[device.device_node] = name[1:-1]
def versionsort(key):
return int(key[len("/dev/input/event") :])
for k in sorted(devices, key=versionsort):
print(f"{k}:\t{devices[k]}")
class HidDevice:
def __init__(self, name, driver, vendor, product, devpath):
self.name = name
self.driver = driver
self.vendor = vendor
self.product = product
self.devpath = devpath
self.hidraws = []
self.evdevs = []
def list_hid_devices():
devices = []
context = pyudev.Context()
for device in context.list_devices(subsystem="hid"):
name = device.properties.get("HID_NAME")
driver = device.properties.get("DRIVER")
devpath = device.properties.get("DEVPATH")
id = device.properties.get("HID_ID") or "0:0:0"
_, vendor, product = (int(x, 16) for x in id.split(":"))
devices.append(HidDevice(name, driver, vendor, product, devpath))
for device in context.list_devices(subsystem="hidraw"):
devpath = device.properties["DEVPATH"]
for hid in devices:
if devpath.startswith(hid.devpath):
hid.hidraws.append(f"'{device.device_node}'")
for device in context.list_devices(subsystem="input"):
if (device.device_node or "").startswith("/dev/input/event"):
devpath = device.properties["DEVPATH"]
for hid in devices:
if devpath.startswith(hid.devpath):
hid.evdevs.append(f"'{device.device_node}'")
print("hid:")
for d in devices:
print(f"- name: '{d.name}'")
print(f" id: '{d.vendor:04x}:{d.product:04x}'")
print(f" driver: '{d.driver}'")
print(f" hidraw: [{', '.join(h for h in d.hidraws)}]")
print(f" evdev: [{', '.join(h for h in d.evdevs)}]")
print("")
def main():
parser = argparse.ArgumentParser(description="List kernel devices")
parser.add_argument("--hid", action="store_true", default=False)
args = parser.parse_args()
if args.hid:
list_hid_devices()
else:
list_devices()
if __name__ == "__main__":
try:
main()
except KeyboardInterrupt:
print("Exited on user request")
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