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# Python script to search the udev file system for devices
# Copyright (C) 2005 Tim Blechmann
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
# $Id: find_hid.py,v 1.3 2005-12-17 17:52:01 timblech Exp $
#
from os import popen, listdir
def parse_device(event, rules):
pipe = popen('udevinfo -a -p /sys/class/input/%s' % event)
line = pipe.readline()
while line:
line.strip()
if '==' in line:
setting, value = line.split('==')
setting = setting.strip()
if '{' in setting:
setting = setting.split('{')[1].split('}')[0]
value = value.strip().strip('"')
if setting in rules:
if rules [setting] == value:
# we matched one rule, so we remove it from the pending rules
del rules[setting]
line = pipe.readline()
if len(rules) == 0:
pipe.close()
print event
return float(event.strip("event"))
pipe.close()
return -1
def find (*args):
name = ""
for token in args:
name+=" " + str(token)
name = name.strip()
rules = name.split('" "')
rules = map (lambda x: x.strip('"'), rules)
ruledict = dict()
for rule in rules:
setting, value = rule.split('=',1)
ruledict[setting] = value
rules = ruledict
events = filter(lambda x: "event" in x, listdir('/sys/class/input/'))
for event in events:
ret = parse_device(event, dict(rules))
if ret != -1:
return int(ret)
return -1
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