69 lines
1.7 KiB
Python
69 lines
1.7 KiB
Python
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import logging
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from binascii import hexlify, unhexlify
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def read_next(handle, timeout=1000, ignore_nodata=False):
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reply = hidapi.read(handle, 128, timeout)
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if reply is None:
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print "!! Read failed, aborting"
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raise Exception()
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if reply:
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print ">> %s [%s]" % (hexlify(reply), repr(reply))
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return True
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if not ignore_nodata:
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print ">> []"
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return False
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def console_cycle(handle):
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while True:
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if read_next(handle, timeout=100, ignore_nodata=True):
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continue
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line = raw_input('!! Enter packet to send (hex bytes): ')
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line = line.strip()
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if not line:
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continue
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if len(line) % 2 == 1:
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line += '0'
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try:
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data = unhexlify(line)
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except:
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print "!! Invalid input."
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continue
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print "<< %s [%s]" % (hexlify(data), repr(data))
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hidapi.write(handle, data)
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read_next(handle)
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if __name__ == '__main__':
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import argparse
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arg_parser = argparse.ArgumentParser()
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arg_parser.add_argument('-v', '--verbose', action='count', default=0,
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help='increase the logger verbosity')
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arg_parser.add_argument('device', default=None,
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help='linux device to connect to')
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args = arg_parser.parse_args()
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log_level = logging.root.level - 10 * args.verbose
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logging.root.setLevel(log_level if log_level > 0 else 1)
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import hidapi
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print "!! Opening device ", args.device
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handle = hidapi.open_path(args.device)
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if handle:
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print "!! Opened %x" % handle
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print "!! vendor=%s product=%s serial=%s" % (
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hidapi.get_manufacturer(handle),
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hidapi.get_product(handle),
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hidapi.get_serial(handle))
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try:
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console_cycle(handle)
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except:
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print "!! Closing handle %x" % handle
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hidapi.close(handle)
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else:
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print "!! Failed to open %s, aborting" % args.device
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