subsystems are not documented here, nor are they tracked by this
attribute.
-Hot keys -- /proc/acpi/ibm/hotkey
----------------------------------
+Hot keys
+--------
+
+procfs: /proc/acpi/ibm/hotkey
+sysfs device attribute: hotkey_*
Without this driver, only the Fn-F4 key (sleep button) generates an
ACPI event. With the driver loaded, the hotkey feature enabled and the
addition, the lid microswitch and some docking station buttons may
also generate such events.
-The following commands can be written to this file:
-
- echo enable > /proc/acpi/ibm/hotkey -- enable the hot keys feature
- echo disable > /proc/acpi/ibm/hotkey -- disable the hot keys feature
- echo 0xffff > /proc/acpi/ibm/hotkey -- enable all possible hot keys
- echo 0x0000 > /proc/acpi/ibm/hotkey -- disable all possible hot keys
- ... any other 4-hex-digit mask ...
- echo reset > /proc/acpi/ibm/hotkey -- restore the original mask
-
The bit mask allows some control over which hot keys generate ACPI
events. Not all bits in the mask can be modified. Not all bits that
can be modified do anything. Not all hot keys can be individually
be used through the "ThinkPad Buttons" utility, see
http://www.nongnu.org/tpb/
-Bluetooth -- /proc/acpi/ibm/bluetooth
--------------------------------------
+procfs notes:
+
+The following commands can be written to the /proc/acpi/ibm/hotkey file:
+
+ echo enable > /proc/acpi/ibm/hotkey -- enable the hot keys feature
+ echo disable > /proc/acpi/ibm/hotkey -- disable the hot keys feature
+ echo 0xffff > /proc/acpi/ibm/hotkey -- enable all possible hot keys
+ echo 0x0000 > /proc/acpi/ibm/hotkey -- disable all possible hot keys
+ ... any other 4-hex-digit mask ...
+ echo reset > /proc/acpi/ibm/hotkey -- restore the original mask
+
+sysfs notes:
+
+ hotkey_bios_enabled:
+ Returns the status of the hot keys feature when
+ thinkpad-acpi was loaded. Upon module unload, the hot
+ key feature status will be restored to this value.
+
+ 0: hot keys were disabled
+ 1: hot keys were enabled
+
+ hotkey_bios_mask:
+ Returns the hot keys mask when thinkpad-acpi was loaded.
+ Upon module unload, the hot keys mask will be restored
+ to this value.
+
+ hotkey_enable:
+ Enables/disables the hot keys feature, and reports
+ current status of the hot keys feature.
+
+ 0: disables the hot keys feature / feature disabled
+ 1: enables the hot keys feature / feature enabled
+
+ hotkey_mask:
+ bit mask to enable ACPI event generation for each hot
+ key (see above). Returns the current status of the hot
+ keys mask, and allows one to modify it.
-This feature shows the presence and current state of a Bluetooth
-device. If Bluetooth is installed, the following commands can be used:
+
+Bluetooth
+---------
+
+procfs: /proc/acpi/ibm/bluetooth
+sysfs device attribute: bluetooth_enable
+
+This feature shows the presence and current state of a ThinkPad
+Bluetooth device in the internal ThinkPad CDC slot.
+
+Procfs notes:
+
+If Bluetooth is installed, the following commands can be used:
echo enable > /proc/acpi/ibm/bluetooth
echo disable > /proc/acpi/ibm/bluetooth
+Sysfs notes:
+
+ If the Bluetooth CDC card is installed, it can be enabled /
+ disabled through the "bluetooth_enable" thinkpad-acpi device
+ attribute, and its current status can also be queried.
+
+ enable:
+ 0: disables Bluetooth / Bluetooth is disabled
+ 1: enables Bluetooth / Bluetooth is enabled.
+
+ Note: this interface will be probably be superseeded by the
+ generic rfkill class, so it is NOT to be considered stable yet.
+
Video output control -- /proc/acpi/ibm/video
--------------------------------------------
would be the safest choice, though).
-EXPERIMENTAL: WAN -- /proc/acpi/ibm/wan
----------------------------------------
+EXPERIMENTAL: 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.
-This feature shows the presence and current state of a WAN (Sierra
-Wireless EV-DO) device. If WAN is installed, the following commands can
-be used:
+This feature shows the presence and current state of a W-WAN (Sierra
+Wireless EV-DO) device.
+
+It was tested on a Lenovo Thinkpad X60. It should probably work on other
+Thinkpad models which come with this module installed.
+
+Procfs notes:
+
+If the W-WAN card is installed, the following commands can be used:
echo enable > /proc/acpi/ibm/wan
echo disable > /proc/acpi/ibm/wan
-It was tested on a Lenovo Thinkpad X60. It should probably work on other
-Thinkpad models which come with this module installed.
+Sysfs notes:
+
+ If the W-WAN card is installed, it can be enabled /
+ disabled through the "wwan_enable" thinkpad-acpi device
+ attribute, and its current status can also be queried.
+
+ enable:
+ 0: disables WWAN card / WWAN card is disabled
+ 1: enables WWAN card / WWAN card is enabled.
+
+ Note: this interface will be probably be superseeded by the
+ generic rfkill class, so it is NOT to be considered stable yet.
Multiple Commands, Module Parameters
------------------------------------
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff