2021-07-11 23:43:35 +00:00
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#!/usr/bin/env python3
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import os, struct, sys
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f = os.open(sys.argv[1], os.O_RDWR | os.O_CLOEXEC) # TODO: windows: os.O_BINARY |
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try:
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os.write(f, b'\x00') # get version
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resp = os.read(f, 4) # response: status, paylaod len (should be 2), payload
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2021-07-14 02:45:35 +00:00
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print("resp=%s"%repr(resp))
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2021-07-11 23:43:35 +00:00
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print("stat=%d plen=%d ver=%04x" % (resp[0], resp[1], struct.unpack('<H', resp[2:])[0]))
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finally:
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os.close(f)
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#with open(sys.argv[1], 'rb') as f:
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# f.write(b'\x00') # get version
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# resp = f.read(4) # response
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# print("stat=%d plen=%d ver=%04x" % (resp[0], resp[1], struct.unpack('<H', resp[2:])[0]))
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