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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.
- 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)
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