projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 64b85006 SA |
1 | Firmware is required for this device: http://accessrunner.sourceforge.net/ |
| 2 | ||
| 3 | While it is capable of managing/maintaining the ADSL connection without the | |
| 4 | module loaded, the device will sometimes stop responding after unloading the | |
| 5 | driver and it is necessary to unplug/remove power to the device to fix this. | |
| 6 | ||
| 7 | Detected devices will appear as ATM devices named "cxacru". In /sys/class/atm/ | |
| 8 | these are directories named cxacruN where N is the device number. A symlink | |
| 9 | named device points to the USB interface device's directory which contains | |
| 10 | several sysfs attribute files for retrieving device statistics: | |
| 11 | ||
| 12 | * adsl_controller_version | |
| 13 | ||
| 14 | * adsl_headend | |
| 15 | * adsl_headend_environment | |
| 16 | Information about the remote headend. | |
| 17 | ||
| 4ac37208 SA |
18 | * adsl_config |
| 19 | Configuration writing interface. | |
| 20 | Write parameters in hexadecimal format <index>=<value>, | |
| 21 | separated by whitespace, e.g.: | |
| 22 | "1=0 a=5" | |
| 23 | Up to 7 parameters at a time will be sent and the modem will restart | |
| 24 | the ADSL connection when any value is set. These are logged for future | |
| 25 | reference. | |
| 26 | ||
| 64b85006 SA |
27 | * downstream_attenuation (dB) |
| 28 | * downstream_bits_per_frame | |
| 29 | * downstream_rate (kbps) | |
| 30 | * downstream_snr_margin (dB) | |
| 31 | Downstream stats. | |
| 32 | ||
| 33 | * upstream_attenuation (dB) | |
| 34 | * upstream_bits_per_frame | |
| 35 | * upstream_rate (kbps) | |
| 36 | * upstream_snr_margin (dB) | |
| 37 | * transmitter_power (dBm/Hz) | |
| 38 | Upstream stats. | |
| 39 | ||
| 40 | * downstream_crc_errors | |
| 41 | * downstream_fec_errors | |
| 42 | * downstream_hec_errors | |
| 43 | * upstream_crc_errors | |
| 44 | * upstream_fec_errors | |
| 45 | * upstream_hec_errors | |
| 46 | Error counts. | |
| 47 | ||
| 48 | * line_startable | |
| 49 | Indicates that ADSL support on the device | |
| 50 | is/can be enabled, see adsl_start. | |
| 51 | ||
| 52 | * line_status | |
| 53 | "initialising" | |
| 54 | "down" | |
| 55 | "attempting to activate" | |
| 56 | "training" | |
| 57 | "channel analysis" | |
| 58 | "exchange" | |
| 59 | "waiting" | |
| 60 | "up" | |
| 61 | ||
| 62 | Changes between "down" and "attempting to activate" | |
| 63 | if there is no signal. | |
| 64 | ||
| 65 | * link_status | |
| 66 | "not connected" | |
| 67 | "connected" | |
| 68 | "lost" | |
| 69 | ||
| 70 | * mac_address | |
| 71 | ||
| 72 | * modulation | |
| 1bfbd283 | 73 | "" (when not connected) |
| 64b85006 SA |
74 | "ANSI T1.413" |
| 75 | "ITU-T G.992.1 (G.DMT)" | |
| 76 | "ITU-T G.992.2 (G.LITE)" | |
| 77 | ||
| 78 | * startup_attempts | |
| 79 | Count of total attempts to initialise ADSL. | |
| 80 | ||
| 81 | To enable/disable ADSL, the following can be written to the adsl_state file: | |
| 82 | "start" | |
| 83 | "stop | |
| 84 | "restart" (stops, waits 1.5s, then starts) | |
| 85 | "poll" (used to resume status polling if it was disabled due to failure) | |
| 86 | ||
| 87 | Changes in adsl/line state are reported via kernel log messages: | |
| 88 | [4942145.150704] ATM dev 0: ADSL state: running | |
| 89 | [4942243.663766] ATM dev 0: ADSL line: down | |
| 90 | [4942249.665075] ATM dev 0: ADSL line: attempting to activate | |
| 91 | [4942253.654954] ATM dev 0: ADSL line: training | |
| 92 | [4942255.666387] ATM dev 0: ADSL line: channel analysis | |
| 93 | [4942259.656262] ATM dev 0: ADSL line: exchange | |
| 94 | [2635357.696901] ATM dev 0: ADSL line: up (8128 kb/s down | 832 kb/s up) |