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