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https://github.com/lm-sensors/lm-sensors.git
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Jean Delvare
4d095e0921
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2490 7894878c-1315-0410-8ee3-d5d059ff63e0
60 lines
1.8 KiB
Plaintext
60 lines
1.8 KiB
Plaintext
.TH ISASET 8 "April 2004"
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.SH "NAME"
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i2cset \- set ISA registers
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.SH SYNOPSIS
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.B isaset
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.I addrreg
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.I datareg
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.I address
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.I value
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(for I\u2\dC-like access)
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.br
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.B isaset
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.BI "-f " address
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.I value
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(for flat address space)
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.SH DESCRIPTION
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isaset is a small helper program to set registers visible through the ISA
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bus.
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.SH OPTIONS (I\u2\dC-like access mode)
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Exactly four options must be provided to isaset. \fIaddrreg\fR contains the
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ISA address of the address register for the chip to probe; \fIdatareg\fR
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contains the address of the data register. Both addresses are integers between
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0x0000 and 0x3FFF. Usually, if the chip's base address is 0x0nn0, the
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address register is at 0x0nn5 and the data register is at 0x0nn6. The most
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common base address for hardware monitoring chips is 0x0290.
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.PP
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For Super-I/O chips, address register is typically at 0x2E with data
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register at 0x2F.
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The \fIaddress\fR and \fIvalue\fR parameters are two integers between
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0x00 and 0xFF. isaset will write value \fIvalue\fR to address \fIaddress\fR.
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.SH OPTIONS (flat address space mode)
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In flat mode (triggered by the \fB-f\fR flag), exactly two parameters must
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be provided. \fIaddress\fR contains the ISA address of the register to
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write to; it is an integer between 0x0000 and 0xFFFF. Basically, it is
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the sum of the chip's base address and the chip register's address. isaset
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will write value \fIvalue\fR at this address.
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.SH WARNING
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Poking around in ISA data space is extremely dangerous.
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Running isaset with random parameters can cause system
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crashes, data loss, and worse! Be extremely careful when using
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this program.
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.SH CONFORMING TO
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lm_sensors-2.x
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.SH SEE ALSO
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i2cset(8), isadump(8)
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.SH AUTHOR
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Mark D. Studebaker, and the lm_sensors group
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(http://www.lm-sensors.nu/)
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.PP
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This manual page was shamelessly ripped from i2cset and isadump manual
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pages by Jean Delvare.
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