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| author | Henrique de Moraes Holschuh <hmh@hmh.eng.br> | 2008-07-21 09:15:51 -0300 |
|---|---|---|
| committer | Henrique de Moraes Holschuh <hmh@hmh.eng.br> | 2008-07-21 09:15:51 -0300 |
| commit | 0e74dc2646db04b644faa8ea10ff4f408d55cf90 (patch) | |
| tree | d1729fca9b925ec972d1ad3c40295cc7740a31dd /Documentation | |
| parent | 133ec3bd3ae409895eacdce326cdc8d73c249e8a (diff) | |
| download | lwn-0e74dc2646db04b644faa8ea10ff4f408d55cf90.tar.gz lwn-0e74dc2646db04b644faa8ea10ff4f408d55cf90.zip | |
ACPI: thinkpad-acpi: add bluetooth and WWAN rfkill support
Add a read/write rfkill interface to the bluetooth radio switch on the
bluetooth submodule, and one for the wireless wan radio switch to the wan
submodule.
Since rfkill does care for when a switch changes state, use WLSW
notifications to also check if the WWAN or Bluetooth switches did not
change state (due to them being slaves of WLSW in firmware/hardware, but
that reality not being always properly exported by the thinkpad firmware).
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Ivo van Doorn <IvDoorn@gmail.com>
Cc: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/laptops/thinkpad-acpi.txt | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt index 64b3f146e4b0..1c1c0217ebd1 100644 --- a/Documentation/laptops/thinkpad-acpi.txt +++ b/Documentation/laptops/thinkpad-acpi.txt @@ -621,7 +621,8 @@ Bluetooth --------- 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. @@ -643,8 +644,12 @@ Sysfs notes: 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 - Note: this interface will be probably be superseded by the - generic rfkill class, so it is NOT to be considered stable yet. + Note: this interface has been superseded by the generic rfkill + class.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 -------------------------------------------- @@ -1374,7 +1379,8 @@ EXPERIMENTAL: WAN ----------------- procfs: /proc/acpi/ibm/wan -sysfs device attribute: wwan_enable +sysfs device attribute: wwan_enable (deprecated) +sysfs rfkill class: switch "tpacpi_wwan_sw" This feature is marked EXPERIMENTAL because the implementation directly accesses hardware registers and may not work as expected. USE @@ -1404,8 +1410,12 @@ Sysfs notes: 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 ------------------------------------ |