Pull ibm into test branch (c92fd49c) · Commits · e / devices / android_kernel_fairphone_FP4

Documentation/ibm-acpi.txt

+25 −50

Original line number	Diff line number	Diff line
		@@ -30,9 +30,10 @@ detailed description):
		- ACPI sounds
		- temperature sensors
		- Experimental: embedded controller register dump
		- Experimental: LCD brightness control
		- Experimental: volume control
		- LCD brightness control
		- Volume control
		- Experimental: fan speed, fan enable/disable
		- Experimental: 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
		@@ -52,40 +53,7 @@ Installation

		If you are compiling this driver as included in the Linux kernel
		sources, simply enable the CONFIG_ACPI_IBM option (Power Management /
		ACPI / IBM ThinkPad Laptop Extras). The rest of this section describes
		how to install this driver when downloaded from the web site.

		First, you need to get a kernel with ACPI support up and running.
		Please refer to http://acpi.sourceforge.net/ for help with this
		step. How successful you will be depends a lot on you ThinkPad model,
		the kernel you are using and any additional patches applied. The
		kernel provided with your distribution may not be good enough. I
		needed to compile a 2.6.7 kernel with the 20040715 ACPI patch to get
		ACPI working reliably on my ThinkPad X40. Old ThinkPad models may not
		be supported at all.

		Assuming you have the basic ACPI support working (e.g. you can see the
		/proc/acpi directory), follow the following steps to install this
		driver:

		- unpack the archive:

		tar xzvf ibm-acpi-x.y.tar.gz; cd ibm-acpi-x.y

		- compile the driver:

		make

		- install the module in your kernel modules directory:

		make install

		- load the module:

		modprobe ibm_acpi

		After loading the module, check the "dmesg" output for any error messages.

		ACPI / IBM ThinkPad Laptop Extras).

		Features
		--------
		@@ -523,13 +491,8 @@ registers contain the current battery capacity, etc. If you experiment
		with this, do send me your results (including some complete dumps with
		a description of the conditions when they were taken.)

		EXPERIMENTAL: LCD brightness control -- /proc/acpi/ibm/brightness
		-----------------------------------------------------------------

		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.
		LCD brightness control -- /proc/acpi/ibm/brightness
		---------------------------------------------------

		This feature allows software control of the LCD brightness on ThinkPad
		models which don't have a hardware brightness slider. The available
		@@ -542,13 +505,8 @@ commands are:
		The <level> number range is 0 to 7, although not all of them may be
		distinct. The current brightness level is shown in the file.

		EXPERIMENTAL: Volume control -- /proc/acpi/ibm/volume
		-----------------------------------------------------

		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.
		Volume control -- /proc/acpi/ibm/volume
		---------------------------------------

		This feature allows volume control on ThinkPad models which don't have
		a hardware volume knob. The available commands are:
		@@ -611,6 +569,23 @@ with the following command:

		echo 'level <level>' > /proc/acpi/ibm/thermal

		EXPERIMENTAL: WAN -- /proc/acpi/ibm/wan
		---------------------------------------

		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:

		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.

		Multiple Commands, Module Parameters
		------------------------------------

drivers/acpi/ibm_acpi.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -1702,13 +1702,11 @@ static struct ibm_struct ibms[] = {
		.name = "brightness",
		.read = brightness_read,
		.write = brightness_write,
		.experimental = 1,
		},
		{
		.name = "volume",
		.read = volume_read,
		.write = volume_write,
		.experimental = 1,
		},
		{
		.name = "fan",