root/lm-sensors/trunk/prog/detect/i2cdetect.8 @ 4157

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1.TH I2CDETECT 8 "April 2006"
2.SH NAME
3i2cdetect \- detect I2C chips
4
5.SH SYNOPSIS
6.B i2cdetect
7.RI [ -y ]
8.RI [ -a ]
9.RI [ -q | -r ]
10.I i2cbus
11.br
12.B i2cdetect
13.I -F
14.I i2cbus
15.br
16.B i2cdetect
17.I -V
18.br
19.B i2cdetect
20.I -l
21
22.SH DESCRIPTION
23i2cdetect is a userspace program to scan an I2C bus for devices. It
24outputs a table with the list of detected devices on the specified bus.
25\fIi2cbus\fR indicates the number of the I2C bus to be scanned, and
26should correspond to one of the busses listed by \fIi2cdetect -l\fR.
27.PP
28i2cdetect can also be used to query the functionalities of an I2C bus
29(see option \fB-F\fP.)
30
31.SH WARNING
32This program can confuse your I2C bus, cause data loss and worse!
33
34.SH OPTIONS
35.TP
36.B "\-y"
37Disable interactive mode. By default, i2cdetect will wait for a confirmation
38from the user before messing with the I2C bus. When this flag is used, it
39will perform the operation directly. This is mainly meant to be used in
40scripts.
41.TP
42.B "\-a"
43Force scanning of non-regular addresses. Not recommended.
44.TP
45.B "\-q"
46Use SMBus "quick write" commands for probing (by default, the command
47used is the one believed to be the safest for each address).
48Not recommended. This is known to corrupt the Atmel AT24RF08 EEPROM
49found on many IBM Thinkpad laptops.
50.TP
51.B "\-r"
52Use SMBus "read byte" commands for probing (by default, the command
53used is the one believed to be the safest for each address).
54Not recommended. This is known to lock SMBus on various write-only
55chips (most notably clock chips at address 0x69).
56.TP
57.B "\-F"
58Display the list of functionalities implemented by the adapter and exit.
59.TP
60.B "\-V"
61Display the version and exit.
62.TP
63.B "\-l"
64Output a list of installed busses.
65
66.SH CONFORMING TO
67lm_sensors-2.x
68
69.SH SEE ALSO
70i2cdump(8), sensors-detect(8)
71
72.SH AUTHOR
73Frodo Looijaard, Mark D. Studebaker, and the lm_sensors group
74http://www.lm-sensors.org/
75This manual page was written by Aurelien Jarno <aurel32@debian.org>, for
76the Debian GNU/Linux system. It was then reviewed by the lm_sensors team and
77is now part of the lm_sensors source distribution.
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