- # need to check for 2 port devices here
- # there are no python bindings for udev, so this is a little awkward
-
- # get device name
- cmd_list = ["udevadm", "info", "--path="+devpath, "--query=name"]
- try:
- proc = subprocess.Popen(cmd_list, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
- output_text = proc.communicate()[0]
- except Exception,e:
- logger.error("failure running udevadm: %s" % e)
- sys.exit(1)
-
- rc = proc.returncode
- if rc != 0:
- logger.error("udevadm failed with return code %d", rc)
- sys.exit(1)
-
- devname = output_text.strip()
-
- # get parent device path
- match_obj = re.match('^(.+)/'+name+"/"+subsystem+'/'+name, devpath)
- if match_obj == None:
- logger.error("failed to get parent device path from udev")
- sys.exit(1)
-
- parent_devpath = match_obj.group(1)
-
- # find all relevant child devices of the parent
- cmd_list = ["udevadm", "info", "--export-db"]
- try:
- proc = subprocess.Popen(cmd_list, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
- output_text = proc.communicate()[0]
- except Exception,e:
- logger.error("failure getting device db: %s" % e)
- sys.exit(1)
-
- rc = proc.returncode
- if rc != 0:
- logger.error("udevadm failed with return code %d when getting device db",rc)
- sys.exit(1)
-
- output_list = output_text.split('\n')
- devpath_re = re.compile('^P: ('+parent_devpath+'.+/'+subsystem+'/.+)')
-
- devpath_list = []
- for line in output_list:
- match_obj = devpath_re.match(line)
- if match_obj != None:
- path = match_obj.group(1)
- devpath_list.append(path)
-
- if len(devpath_list) > 1:
- devpath_list.sort()
- if device_path != devpath_list[len(devpath_list) - 1]:
- logger.warning("found inactive port, we need to mark this somehow")
- sys.exit(0)
-
# get serial device file
if platform.system() == "FreeBSD":
logger.critical("do we support udev/devicekit on FreeBSD ???")