64b85006f5
The sysfs attributes for exposing cxacru statistics/status information with possible values is now explained in Documentation/networking/cxacru.txt including information on the writable adsl_state attribute's commands and a sample of the kernel log format. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Cc: Duncan Sands <duncan.sands@math.u-psud.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
85 lines
2.3 KiB
Plaintext
85 lines
2.3 KiB
Plaintext
Firmware is required for this device: http://accessrunner.sourceforge.net/
|
|
|
|
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.
|
|
|
|
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
|
|
several sysfs attribute files for retrieving device statistics:
|
|
|
|
* adsl_controller_version
|
|
|
|
* adsl_headend
|
|
* adsl_headend_environment
|
|
Information about the remote headend.
|
|
|
|
* downstream_attenuation (dB)
|
|
* downstream_bits_per_frame
|
|
* downstream_rate (kbps)
|
|
* downstream_snr_margin (dB)
|
|
Downstream stats.
|
|
|
|
* upstream_attenuation (dB)
|
|
* upstream_bits_per_frame
|
|
* upstream_rate (kbps)
|
|
* upstream_snr_margin (dB)
|
|
* transmitter_power (dBm/Hz)
|
|
Upstream stats.
|
|
|
|
* downstream_crc_errors
|
|
* downstream_fec_errors
|
|
* downstream_hec_errors
|
|
* upstream_crc_errors
|
|
* upstream_fec_errors
|
|
* upstream_hec_errors
|
|
Error counts.
|
|
|
|
* line_startable
|
|
Indicates that ADSL support on the device
|
|
is/can be enabled, see adsl_start.
|
|
|
|
* line_status
|
|
"initialising"
|
|
"down"
|
|
"attempting to activate"
|
|
"training"
|
|
"channel analysis"
|
|
"exchange"
|
|
"waiting"
|
|
"up"
|
|
|
|
Changes between "down" and "attempting to activate"
|
|
if there is no signal.
|
|
|
|
* link_status
|
|
"not connected"
|
|
"connected"
|
|
"lost"
|
|
|
|
* mac_address
|
|
|
|
* modulation
|
|
"ANSI T1.413"
|
|
"ITU-T G.992.1 (G.DMT)"
|
|
"ITU-T G.992.2 (G.LITE)"
|
|
|
|
* startup_attempts
|
|
Count of total attempts to initialise ADSL.
|
|
|
|
To enable/disable ADSL, the following can be written to the adsl_state file:
|
|
"start"
|
|
"stop
|
|
"restart" (stops, waits 1.5s, then starts)
|
|
"poll" (used to resume status polling if it was disabled due to failure)
|
|
|
|
Changes in adsl/line state are reported via kernel log messages:
|
|
[4942145.150704] ATM dev 0: ADSL state: running
|
|
[4942243.663766] ATM dev 0: ADSL line: down
|
|
[4942249.665075] ATM dev 0: ADSL line: attempting to activate
|
|
[4942253.654954] ATM dev 0: ADSL line: training
|
|
[4942255.666387] ATM dev 0: ADSL line: channel analysis
|
|
[4942259.656262] ATM dev 0: ADSL line: exchange
|
|
[2635357.696901] ATM dev 0: ADSL line: up (8128 kb/s down | 832 kb/s up)
|