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-rw-r--r--Documentation/networking/00-INDEX2
-rw-r--r--Documentation/networking/cxacru-cf.py48
-rw-r--r--Documentation/networking/cxacru.txt6
3 files changed, 56 insertions, 0 deletions
diff --git a/Documentation/networking/00-INDEX b/Documentation/networking/00-INDEX
index 50189bf..fe5c099 100644
--- a/Documentation/networking/00-INDEX
+++ b/Documentation/networking/00-INDEX
@@ -32,6 +32,8 @@ cs89x0.txt
- the Crystal LAN (CS8900/20-based) Ethernet ISA adapter driver
cxacru.txt
- Conexant AccessRunner USB ADSL Modem
+cxacru-cf.py
+ - Conexant AccessRunner USB ADSL Modem configuration file parser
de4x5.txt
- the Digital EtherWORKS DE4?? and DE5?? PCI Ethernet driver
decnet.txt
diff --git a/Documentation/networking/cxacru-cf.py b/Documentation/networking/cxacru-cf.py
new file mode 100644
index 0000000..b41d298
--- /dev/null
+++ b/Documentation/networking/cxacru-cf.py
@@ -0,0 +1,48 @@
+#!/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")
diff --git a/Documentation/networking/cxacru.txt b/Documentation/networking/cxacru.txt
index f4fbf4c..2cce044 100644
--- a/Documentation/networking/cxacru.txt
+++ b/Documentation/networking/cxacru.txt
@@ -4,6 +4,12 @@ While it is capable of managing/maintaining the ADSL connection without the
module loaded, the device will sometimes stop responding after unloading the
driver and it is necessary to unplug/remove power to the device to fix this.
+Note: support for cxacru-cf.bin has been removed. It was not loaded correctly
+so it had no effect on the device configuration. Fixing it could have stopped
+existing devices working when an invalid configuration is supplied.
+
+There is a script cxacru-cf.py to convert an existing file to the sysfs form.
+
Detected devices will appear as ATM devices named "cxacru". In /sys/class/atm/
these are directories named cxacruN where N is the device number. A symlink
named device points to the USB interface device's directory which contains
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