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authorkhali <khali@7894878c-1315-0410-8ee3-d5d059ff63e0>2013-05-01 11:40:43 +0000
committerkhali <khali@7894878c-1315-0410-8ee3-d5d059ff63e0>2013-05-01 11:40:43 +0000
commitf114873e4d612609fe2ac71c4af11e575dfeca0f (patch)
treed3afec377699f208981619e142843aeb555fcae5 /doc
parent0a7949883573a5d49d7d618626af9788424484b4 (diff)
downloadlm-sensors-f114873e4d612609fe2ac71c4af11e575dfeca0f.tar.gz
Delete outdated document chips/MODPARMS.
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@6167 7894878c-1315-0410-8ee3-d5d059ff63e0
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-Parameters for modprobe and insmod
-==================================
-
-PRELIMINARY WARNING:
-This documentation file is outdated and needs to be entirely reviewed
-and updated. Until then, don't blindly trust what you read here.
-
-==================================
-SUMMARY
-
- [modprobe,insmod] module {parameter...}
- Parameters:
- force=bus,address{,bus,address}
- force_addr=address{,address}
- force_[chipname]=bus,address{,bus,address}
- force_subclients=bus,caddr,saddr,saddr
- ignore=bus,address{,bus,address}
- ignore_range=bus,start,end{,bus,start,end}
- probe=bus,address{,bus,address}
- probe_range=bus,start,end{,bus,start,end}
- init=[0,1] (default 1)
-
- All arguments are in decimal unless prefixed by "0x".
- No spaces are allowed.
-
-==================================
-OVERVIEW
-
-All chip drivers have a few modprobe module parameters in common.
-(Insmod can also be used, but we recommend modprobe so that
-other required modules are automatically loaded.) These
-parameters can be used when a module is inserted, to give some additional
-information about how it should function. In this case, they tell where
-the module should look for what chips. Usually, you don't need them, and
-if you do, you are often told by sensors-detect which ones you need.
-
-If a module doesn't load with no parameters, you may need to
-add parameters. Check 'dmesg' for clues to what went wrong.
-
-
-BUS NUMBERING
--------------
-I2C/SMBus adapters are numbered in the order they are inserted. If you want
-to know what number an adapter has, use the following command:
-
- (for kernel 2.6.32 and newer)
- grep . /sys/bus/i2c/devices/i2c-*/name
-
- (for kernel 2.6.31 and older)
- grep . /sys/class/i2c-adapter/i2c-*/name
-
-Alternatively, if you have installed i2c-tools, you can do:
-
- modprobe i2c-dev
- i2cdetect -l
-
-If you want 'any I2C bus', use '-1'.
-
-
-ADDRESS NUMBERING
------------------
-Each adapter has a number of addresses on I2C/SMBus adapters and/or the
-ISA bus that are always scanned if no modprobe parameters are given. The
-parameters below override those addresses that are scanned by default.
-
-All modprobe parameters described below take lists of positive integers
-(unsigned, in the range of 0 to 65535) as their arguments. Integers
-are separated by comma's, and may be given as ordinary decimal numbers,
-as octal numbers (by starting them with a `0') or as hexadecimal numbers
-(by starting them with a `0x'). More information can be found by
-entering `man modprobe' or `man insmod'.
-So to summarize:
- 0x00 - 0x7f Valid I2C Addresses
- 0x0000 - 0xffff Valid ISA Bus Addresses
-
-
-==================================
-PARAMETER DETAILS
-
-`force', `force_*', `ignore' and `probe' parameters take pairs of numbers.
-Each first (odd) number is a bus number, each second (even) number is
-an (I2C or ISA) address.
-
-`ignore_range' and `probe_range' parameters take triples of numbers.
-Each first number is a bus number, each second number is the start address
-of a range, and each third number is the end address of a range. Ranges
-are always inclusive.
-
-`probe' and `probe_range' parameters tell the module to scan additional
-addresses for a specific bus. These are treated just as the ordinary
-addresses scanned. This is useful for some chips that can be anywhere;
-to keep loading time (and false detections) down, only the most common
-addresses are scanned by default.
-
-`ignore' and `ignore_range' parameters tell the module not to scan
-specific addresses. They overrule the default addresses and any
-addresses specified by `probe' and `probe_range' statements.
-
-The `force' parameter tells the module a supported chip is found at
-a specific address. It overrules all previously mentioned parameters.
-Sometimes, a chip can be in a specific internal state that makes
-detection impossible. If you specify it with the `force' parameter,
-it is first put into a recognizable state. Also, some detection routines
-are skipped. If the module supports several chips, it will still try
-to determine what chip is found on that address. If it can't determine
-this, the address will still not be used.
-
-There is a `force_*' parameter for each type of chip supported by a
-module. This is the strongest statement possible - it says that a
-specific type of chip is found on a specific address, and the module
-will skip all detection and recognition routines. This can lead to
-very strange results...
-
-`force_addr' is a parameter used for PCI sensor adapters.
-It is used to program the base address of the sensor registers.
-This is required if the BIOS does not initialize the base address.
-
-`force_subclients' is used to force the i2c addresses for subclients of
-a certain chip. Typical usage is `force_subclients=0,0x2d,0x4a,0x4b'
-to force the subclients of chip 0x2d on bus 0 to i2c addresses
-0x4a and 0x4b.
-This parameter is currently supported only by the w83781d driver
-and is useful for certain Tyan boards.
-
-`init' is used to tell a driver to bypass initializing a chip.
-This may be necessary if the BIOS has initialized the chip a certain way
-and the driver should not overwrite that initialization.
-It is also useful if normal initialization crashes the system.
-The default is 1, so the only useful value is `init=0'.
-This parameter is currently supported only by the w83781d driver.
-
-==================================
-EXAMPLE
-
- # ISA address 0x390 contains a LM79
- # Scan all I2C addresses (from 0 to 0x7f) for all I2C adapters
- # But skip address 0x2d on adapter 0, and address 0x20 on adapter 1
-
- modprobe lm78 force_lm79=9191,0x390 ignore=0,0x2d,1,0x20 probe_range=-1,0,0x7f