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-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.
-
-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
-several sysfs attribute files for retrieving device statistics:
-
-* adsl_controller_version
-
-* adsl_headend
-* adsl_headend_environment
- Information about the remote headend.
-
-* adsl_config
- Configuration writing interface.
- Write parameters in hexadecimal format <index>=<value>,
- 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)
-* 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
- "" (when not connected)
- "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)