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Diffstat (limited to 'serial/tools/list_ports.py')
-rw-r--r-- | serial/tools/list_ports.py | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/serial/tools/list_ports.py b/serial/tools/list_ports.py new file mode 100644 index 0000000..0d7e3d4 --- /dev/null +++ b/serial/tools/list_ports.py @@ -0,0 +1,110 @@ +#!/usr/bin/env python +# +# Serial port enumeration. Console tool and backend selection. +# +# This file is part of pySerial. https://github.com/pyserial/pyserial +# (C) 2011-2015 Chris Liechti <cliechti@gmx.net> +# +# SPDX-License-Identifier: BSD-3-Clause + +"""\ +This module will provide a function called comports that returns an +iterable (generator or list) that will enumerate available com ports. Note that +on some systems non-existent ports may be listed. + +Additionally a grep function is supplied that can be used to search for ports +based on their descriptions or hardware ID. +""" + +from __future__ import absolute_import + +import sys +import os +import re + +# chose an implementation, depending on os +#~ if sys.platform == 'cli': +#~ else: +if os.name == 'nt': # sys.platform == 'win32': + from serial.tools.list_ports_windows import comports +elif os.name == 'posix': + from serial.tools.list_ports_posix import comports +#~ elif os.name == 'java': +else: + raise ImportError("Sorry: no implementation for your platform ('{}') available".format(os.name)) + +# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + +def grep(regexp, include_links=False): + """\ + Search for ports using a regular expression. Port name, description and + hardware ID are searched. The function returns an iterable that returns the + same tuples as comport() would do. + """ + r = re.compile(regexp, re.I) + for info in comports(include_links): + port, desc, hwid = info + if r.search(port) or r.search(desc) or r.search(hwid): + yield info + + +# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +def main(): + import argparse + + parser = argparse.ArgumentParser(description='Serial port enumeration') + + parser.add_argument( + 'regexp', + nargs='?', + help='only show ports that match this regex') + + parser.add_argument( + '-v', '--verbose', + action='store_true', + help='show more messages') + + parser.add_argument( + '-q', '--quiet', + action='store_true', + help='suppress all messages') + + parser.add_argument( + '-n', + type=int, + help='only output the N-th entry') + + parser.add_argument( + '-s', '--include-links', + action='store_true', + help='include entries that are symlinks to real devices') + + args = parser.parse_args() + + hits = 0 + # get iteraror w/ or w/o filter + if args.regexp: + if not args.quiet: + sys.stderr.write("Filtered list with regexp: {!r}\n".format(args.regexp)) + iterator = sorted(grep(args.regexp, include_links=args.include_links)) + else: + iterator = sorted(comports(include_links=args.include_links)) + # list them + for n, (port, desc, hwid) in enumerate(iterator, 1): + if args.n is None or args.n == n: + sys.stdout.write("{:20}\n".format(port)) + if args.verbose: + sys.stdout.write(" desc: {}\n".format(desc)) + sys.stdout.write(" hwid: {}\n".format(hwid)) + hits += 1 + if not args.quiet: + if hits: + sys.stderr.write("{} ports found\n".format(hits)) + else: + sys.stderr.write("no ports found\n") + +# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +# test +if __name__ == '__main__': + main() |