thinkpad,smapi,superio,rtcmosram
and
thinkpadpm
are device drivers for certain ThinkPad components in the form of
loadable kernel modules.
The
thinkpad
driver merely loads the other driver modules as needed. It also
provides access to the other drivers on non-devfs systems.
The
smapi
driver is the interface to the IBM System Management Application Program
Interface (SMAPI) BIOS found in some ThinkPads. The
superio
driver controls the Super I/O chip. The
rtcmosram
driver provides access to the RT/CMOS nonvolatile RAM. The
thinkpadpm
driver makes available certain power management functions.
Each module adds an entry under /proc/driver/thinkpad
named like itself which contains some information about itself.
PARAMETERS
The
thinkpad
module takes the following parameters.
enable_smapi=n
Disable (0) or enable (1) use of the
smapi
module
enable_superio=n
Disable (0) or enable (1) use of the
superio
module
enable_rtcmosram=n
Disable (0) or enable (1) use of the
rtcmosram
module
enable_thinkpadpm=n
Disable (0) or enable (1) use of the
thinkpadpm
module
SECURITY
The user requires write permission on the device file
in order to change settings or to "sedate" the machine.
FILES
/proc/driver/thinkpad
Files containing information about the drivers are in this directory.
/dev/thinkpad
This is a directory containing the following special device files:
/dev/thinkpad/thinkpad
Special device file (char, major 10, minor 170) through which ThinkPad devices
are controlled
/dev/thinkpad/smapi
Special device file through which the SMAPI BIOS
may be accessed
/dev/thinkpad/superio
Special device file through which the Super I/O
chip may be controlled
/dev/thinkpad/rtcmosram
Special device file through which the RT CMOS RAM
chip may be controlled
/dev/thinkpad/thinkpadpm
Special device file through which certain ThinkPad
power management actions may be performed
BUGS
None known.
AUTHOR
The device drivers were written by Thomas Hood.
This page was written by Thomas Hood.
