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Frodo Looijaard
6ba72c686a
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@409 7894878c-1315-0410-8ee3-d5d059ff63e0
113 lines
4.3 KiB
Plaintext
113 lines
4.3 KiB
Plaintext
This is a list of modules, the modules they depend on, and the module
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parameters they define. First, some things about managing all these
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modules.
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Managing Modules
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================
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The hardcore way is to insmod each of them by hand. This is not very
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practical, though. It is better to install them in a subdirectory that
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modprobe examines. /lib/modules/current/extra/misc comes to mind.
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You need to add this path to your /etc/modules.conf (or /etc/conf.modules,
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which file is used depends on your distribution):
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(modules-2.0.0):
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path[misc]=/lib/modules/current/extra/misc
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(modutils-2.1.x):
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path=/lib/modules/current/extra
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Do always a 'depmod -a' after changing either your configuration file or
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changing a module in one of the module directories; you also need to do
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a 'killall -HUP kerneld' if you still use kerneld (kernel 2.2.x usually
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uses kmod.
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Now you can do 'modprobe lm78', and all dependent modules are loaded
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automatically. You could, of course, add this statement (and related
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statements for other drivers) somewhere in your rc files. But, most
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distributions are set up to load automatically all files in the
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'boot' directories on system start, so why not use this? The best
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way to do this is to create directory /lib/modules/boot, and to
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put *links* to the real modules in there. Why links? Well, by linking
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to /lib/modules/current/whatever, this will function for any kernel
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(provided /lib/modules/current is correctly set up to point to the
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current kernel). So:
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mkdir -p /lib/modules/boot
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ln -s ../current/extra/misc/lm78.o /lib/modules/boot/lm78.o
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# etc.
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It is also possible to specify default options, that you would normally
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enter at the insmod command, in the configuration file. The syntax is
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as follows:
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options i2c-core debug=2
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Finally, it is possible to auto-load the i2c-dev module if a /dev/i2c-*
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file is accessed. You need the following line in the configuration file:
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alias char-major-89 i2c-dev
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With the above, the managing of all those modules is suddenly no problem
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at all!
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Available Modules
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=================
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This does not list the chip and bus drivers; please examine the directories
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doc/chips and doc/busses for more information about them.
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(i2c) i2c-core:
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The core i2c module (surprise!). Almost everything else depends on this one.
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Module parameters:
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i2c_debug (i) Set debug level
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(src) i2c-proc: i2c-core
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Creates /proc/bus/i2c* files.
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(src) i2c-dev: smbus i2c-core
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Grants access to /dev/i2c-* files
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(src) smbus: i2c-core
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SMBus emulation on i2c busses. Base algorithm, on which SMBus-only adapters
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rely.
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(src/busses) i2c-isa: i2c-core
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Defines the ISA bus as being a I2C adapter. It isn't, of course; but this is
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often used by sensor client modules, to keep the code small and simple.
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(src) sensors: i2c-core
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General purpose routines for sensor client modules
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(i2c) algo-bit: i2c-core
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The 'bit' algorithm, used by many i2c adapters
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Module parameters:
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bit_test (i) Test the lines of the bus to see if it is stuck
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bit_scan (i) Scan for active chips on the bus
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i2c_debug (i) debug level - 0 off; 1 normal; 2,3 more verbose;
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9 bit-protocol
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(i2c) bit-lp: algo-bit i2c-core
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I2C bus through the parallel port, Philips interface
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Do not insert this module unless you are sure you have this interface;
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it will block your parallel port, and cause fake devices to appear.
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Module parameters:
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base (i) Base address of parallel port
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(i2c) bit-velle: algo-bit i2c-core
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I2C bus through the parallel port, Vellemann K9000 interface
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Do not insert this module unless you are sure you have this interface;
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it will block your parallel port, and cause fake devices to appear.
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Module parameters:
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base (i) Base address of parallel port
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(i2c) i2c-dev: i2c-core
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/dev interface for I2C adapters. This is superseded by a module which
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will also implement SMBus access. Please do not use this anymore.
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Several other modules are not yet ported by Simon Vogl. They are mostly in
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i2c/old-code.
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Usually, if you load the modules through modprobe, you need the following
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commands:
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modprobe i2c-proc
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modprobe i2c-dev # Often not needed; see above
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modprobe i2c-isa # Unless you are certain no sensor chips live on the ISA bus
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modprobe i2c-piix4 # One such line for each adapter you own
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modprobe lm78 # One such line for each device you own
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