ThinkPad ACPI Extras Driver
- Version 0.19
- January 06th, 2008
+ Version 0.21
+ May 29th, 2008
Borislav Deianov <borislav@users.sf.net>
Henrique de Moraes Holschuh <hmh@hmh.eng.br>
- LCD brightness control
- Volume control
- Fan control and monitoring: fan speed, fan enable/disable
- - Experimental: WAN enable and disable
+ - WAN enable and disable
A compatibility table by model and feature is maintained on the web
site, http://ibm-acpi.sf.net/. I appreciate any success or failure
In addition to the EV_KEY events, thinkpad-acpi may also issue EV_SW
events for switches:
-SW_RADIO T60 and later hardare rfkill rocker switch
+SW_RFKILL_ALL T60 and later hardare rfkill rocker switch
SW_TABLET_MODE Tablet ThinkPads HKEY events 0x5009 and 0x500A
Non hot-key ACPI HKEY event map:
---------
procfs: /proc/acpi/ibm/bluetooth
-sysfs device attribute: bluetooth_enable
+sysfs device attribute: bluetooth_enable (deprecated)
+sysfs rfkill class: switch "tpacpi_bluetooth_sw"
This feature shows the presence and current state of a ThinkPad
Bluetooth device in the internal ThinkPad CDC slot.
0: disables Bluetooth / Bluetooth is disabled
1: enables Bluetooth / Bluetooth is enabled.
- Note: this interface will be probably be superseded by the
- generic rfkill class, so it is NOT to be considered stable yet.
+ Note: this interface has been superseded by the generic rfkill
+ class. It has been deprecated, and it will be removed in year
+ 2010.
+
+ rfkill controller switch "tpacpi_bluetooth_sw": refer to
+ Documentation/rfkill.txt for details.
Video output control -- /proc/acpi/ibm/video
--------------------------------------------
------------------
procfs: /proc/acpi/ibm/light
-sysfs attributes: as per led class, for the "tpacpi::thinklight" led
+sysfs attributes: as per LED class, for the "tpacpi::thinklight" LED
procfs notes:
sysfs notes:
-The ThinkLight sysfs interface is documented by the led class
-documentation, in Documentation/leds-class.txt. The ThinkLight led name
+The ThinkLight sysfs interface is documented by the LED class
+documentation, in Documentation/leds-class.txt. The ThinkLight LED name
is "tpacpi::thinklight".
-Due to limitations in the sysfs led class, if the status of the thinklight
+Due to limitations in the sysfs LED class, if the status of the thinklight
cannot be read or if it is unknown, thinkpad-acpi will report it as "off".
It is impossible to know if the status returned through sysfs is valid.
-----------
procfs: /proc/acpi/ibm/led
-sysfs attributes: as per led class, see below for names
+sysfs attributes: as per LED class, see below for names
Some of the LED indicators can be controlled through this feature. On
some older ThinkPad models, it is possible to query the status of the
The available commands are:
- echo '<led number> on' >/proc/acpi/ibm/led
- echo '<led number> off' >/proc/acpi/ibm/led
- echo '<led number> blink' >/proc/acpi/ibm/led
+ echo '<LED number> on' >/proc/acpi/ibm/led
+ echo '<LED number> off' >/proc/acpi/ibm/led
+ echo '<LED number> blink' >/proc/acpi/ibm/led
-The <led number> range is 0 to 7. The set of LEDs that can be
+The <LED number> range is 0 to 7. The set of LEDs that can be
controlled varies from model to model. Here is the common ThinkPad
mapping:
sysfs notes:
-The ThinkPad LED sysfs interface is described in detail by the led class
+The ThinkPad LED sysfs interface is described in detail by the LED class
documentation, in Documentation/leds-class.txt.
The leds are named (in LED ID order, from 0 to 7):
"tpacpi::dock_active", "tpacpi::bay_active", "tpacpi::dock_batt",
"tpacpi::unknown_led", "tpacpi::standby".
-Due to limitations in the sysfs led class, if the status of the LED
+Due to limitations in the sysfs LED class, if the status of the LED
indicators cannot be read due to an error, thinkpad-acpi will report it as
a brightness of zero (same as LED off).
would be the safest choice, though).
-EXPERIMENTAL: WAN
------------------
+WAN
+---
procfs: /proc/acpi/ibm/wan
-sysfs device attribute: wwan_enable
-
-This feature is marked EXPERIMENTAL because the implementation
-directly accesses hardware registers and may not work as expected. USE
-WITH CAUTION! To use this feature, you need to supply the
-experimental=1 parameter when loading the module.
+sysfs device attribute: wwan_enable (deprecated)
+sysfs rfkill class: switch "tpacpi_wwan_sw"
This feature shows the presence and current state of a W-WAN (Sierra
Wireless EV-DO) device.
0: disables WWAN card / WWAN card is disabled
1: enables WWAN card / WWAN card is enabled.
- Note: this interface will be probably be superseded by the
- generic rfkill class, so it is NOT to be considered stable yet.
+ Note: this interface has been superseded by the generic rfkill
+ class. It has been deprecated, and it will be removed in year
+ 2010.
+
+ rfkill controller switch "tpacpi_wwan_sw": refer to
+ Documentation/rfkill.txt for details.
Multiple Commands, Module Parameters
------------------------------------
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff