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48 lines
1.6 KiB
48 lines
1.6 KiB
#!/usr/bin/env python |
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# Copyright 2009 Simon Arlott |
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# |
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# This program is free software; you can redistribute it and/or modify it |
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# under the terms of the GNU General Public License as published by the Free |
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# Software Foundation; either version 2 of the License, or (at your option) |
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# any later version. |
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# |
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# This program is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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# more details. |
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# |
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# You should have received a copy of the GNU General Public License along with |
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# this program; if not, write to the Free Software Foundation, Inc., 59 |
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# Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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# |
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# Usage: cxacru-cf.py < cxacru-cf.bin |
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# Output: values string suitable for the sysfs adsl_config attribute |
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# |
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# Warning: cxacru-cf.bin with MD5 hash cdbac2689969d5ed5d4850f117702110 |
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# contains mis-aligned values which will stop the modem from being able |
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# to make a connection. If the first and last two bytes are removed then |
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# the values become valid, but the modulation will be forced to ANSI |
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# T1.413 only which may not be appropriate. |
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# |
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# The original binary format is a packed list of le32 values. |
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import sys |
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import struct |
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i = 0 |
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while True: |
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buf = sys.stdin.read(4) |
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if len(buf) == 0: |
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break |
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elif len(buf) != 4: |
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sys.stdout.write("\n") |
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sys.stderr.write("Error: read {0} not 4 bytes\n".format(len(buf))) |
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sys.exit(1) |
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if i > 0: |
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sys.stdout.write(" ") |
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sys.stdout.write("{0:x}={1}".format(i, struct.unpack("<I", buf)[0])) |
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i += 1 |
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sys.stdout.write("\n")
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