From 4ac37208e9b30b36b615ed22a79b4ee787fdc9b5 Mon Sep 17 00:00:00 2001 From: Simon Arlott Date: Sat, 21 Nov 2009 15:14:01 +0000 Subject: USB: cxacru: add write-only sysfs attribute for modem configuration The modem can be configured using CM_REQUEST_CARD_DATA_SET, although CM_REQUEST_CARD_DATA_GET does not return any data. Tested by setting the modulation (0x0a) option. There is a list of parameters in the following archive, but the meaning of many of them is not well documented: http://sourceforge.net/project/shownotes.php?release_id=301825 This source also indicates that the highest parameter set is 0x4a but this varies by model so an arbitrary limit of 0x7f has been used (the index is a 32-bit integer). Signed-off-by: Simon Arlott Signed-off-by: Greg Kroah-Hartman --- Documentation/networking/cxacru.txt | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'Documentation') diff --git a/Documentation/networking/cxacru.txt b/Documentation/networking/cxacru.txt index 3532ceecd2c3..f4fbf4cd592c 100644 --- a/Documentation/networking/cxacru.txt +++ b/Documentation/networking/cxacru.txt @@ -15,6 +15,15 @@ several sysfs attribute files for retrieving device statistics: * adsl_headend_environment Information about the remote headend. +* adsl_config + Configuration writing interface. + Write parameters in hexadecimal format =, + separated by whitespace, e.g.: + "1=0 a=5" + Up to 7 parameters at a time will be sent and the modem will restart + the ADSL connection when any value is set. These are logged for future + reference. + * downstream_attenuation (dB) * downstream_bits_per_frame * downstream_rate (kbps) -- cgit v1.2.3