ieee1394: ohci1394: revert fail on error in suspend

[powerpc.git] / Documentation / ibm-acpi.txt

diff --git a/Documentation/ibm-acpi.txt b/Documentation/ibm-acpi.txt
index 1672590..e50595b 100644 (file)
--- a/Documentation/ibm-acpi.txt
+++ b/Documentation/ibm-acpi.txt
@@ -33,6 +33,7 @@ detailed description):
        - 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
 --------
@@ -601,6 +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
 ------------------------------------