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isaset.8: editorial fixes
Submitted by Bjarni Ingi Gislason <bjarniig@simnet.is> via the Debian BTS, bug #1051115.
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Aurelien Jarno authored and Michal Suchánek committed
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+64
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@@ -4,8 +4,8 @@ isaset \- set ISA registers
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.SH SYNOPSIS
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.B isaset
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.RB [ -y ]
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.RB [ -W | -L ]
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.RB [ \-y ]
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.RB [ \-W | \-L ]
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.I addrreg
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.I datareg
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.I address
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@@ -14,66 +14,95 @@ isaset \- set ISA registers
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#for I2C-like access
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.br
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.B isaset
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.B -f
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.RB [ -y ]
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.RB [ -W | -L ]
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.B \-f
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.RB [ \-y ]
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.RB [ \-W | \-L ]
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.I address
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.I value
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.RI [ mask ]
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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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.B isaset
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is a small helper program to set registers visible through the ISA bus.
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.SH OPTIONS
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.TP
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.B -f
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.B \-f
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Enable flat address space mode.
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.TP
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.B -y
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Disable interactive mode. By default, isaset will wait for a confirmation
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from the user before messing with the ISA bus. When this flag is used, it
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will perform the operation directly. This is mainly meant to be used in
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scripts.
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.B \-y
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Disable interactive mode.
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By default,
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.B isaset
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will wait for a confirmation
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from the user before messing with the ISA bus.
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When this flag is used,
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it will perform the operation directly.
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This is mainly meant to be used in scripts.
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.TP
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.B -W
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.B \-W
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Perform a 16-bit write.
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.TP
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.B -L
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.B \-L
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Perform a 32-bit write.
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.SH OPTIONS (I2C-like access mode)
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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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Four options must be provided to
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.BR isaset .
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.I addrreg
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contains the ISA address of the address register for the chip to probe;
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.I datareg
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contains the address of the data register.
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Both addresses are integers between 0x0000 and 0x3FFF.
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Usually, if the chip's base address is 0x0nn0,
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the address register is at 0x0nn5 and the data register is at 0x0nn6.
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The most common base address for hardware monitoring chips is 0x0290.
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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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An optional \fImask\fR can be provided as a fifth parameter, preserving
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unmasked bits at the written location.
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The
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.I address
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and
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.I value
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parameters are two integers between 0x00 and 0xFF.
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.B isaset
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will write value
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.I value
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to address
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.IR address .
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An optional
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.I mask
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can be provided as a fifth parameter,
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preserving unmasked bits at the written location.
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.SH OPTIONS (flat address space mode)
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In flat mode, 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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An optional \fImask\fR can be provided as a third parameter, preserving
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unmasked bits at the written location.
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be provided.
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.I address
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contains the ISA address of the register to write to;
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it is an integer between 0x0000 and 0xFFFF.
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Basically, it is
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the sum of the chip's base address and the chip register's address.
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.B isaset
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will write value
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.I value
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at this address.
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An optional
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.I mask
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can be provided as a third parameter,
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preserving unmasked bits at the written location.
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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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Running
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.B isaset
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with random parameters can cause system
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crashes, data loss, and worse!
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Be extremely careful when using this program.
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.SH SEE ALSO
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i2cset(8), isadump(8)
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.BR i2cset (8),
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.BR isadump (8)
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.SH AUTHOR
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Mark D. Studebaker, and the lm_sensors group
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