+.. SPDX-License-Identifier: GPL-2.0
+
+========================
+ATM cxacru device driver
+========================
+
Firmware is required for this device: http://accessrunner.sourceforge.net/
While it is capable of managing/maintaining the ADSL connection without the
* adsl_headend
* adsl_headend_environment
- Information about the remote headend.
+
+ - Information about the remote headend.
* adsl_config
- Configuration writing interface.
- Write parameters in hexadecimal format <index>=<value>,
- separated by whitespace, e.g.:
+
+ - 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.
+
+ - 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.
+
+ - Downstream stats.
* upstream_attenuation (dB)
* upstream_bits_per_frame
* upstream_rate (kbps)
* upstream_snr_margin (dB)
* transmitter_power (dBm/Hz)
- Upstream stats.
+
+ - Upstream stats.
* downstream_crc_errors
* downstream_fec_errors
* upstream_crc_errors
* upstream_fec_errors
* upstream_hec_errors
- Error counts.
+
+ - Error counts.
* line_startable
- Indicates that ADSL support on the device
- is/can be enabled, see adsl_start.
+
+ - 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"
+
+ - "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"
+
+ - "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)"
+
+ - "" (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.
+
+ - 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:
+ - "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