i2cdetect - detect I2C chips
i2cdetect [-y] [-a] [-q|-r] i2cbus
i2cdetect is a userspace program to scan an I2C bus for devices. It
outputs a table with the list of detected devices on the specified bus.
i2cbus indicates the number of the I2C bus to be scanned, and should
correspond to one of the busses listed by i2cdetect -l.
This program can confuse your I2C bus, cause data loss and worse!
-y Disable interactive mode. By default, i2cdetect will wait for a
confirmation from the user before messing with the I2C bus. When
this flag is used, it will perform the operation directly. This
is mainly meant to be used in scripts.
-a Force scanning of non-regular addresses. Not recommended.
-q Use SMBus "quick write" commands for probing (by default, the
command used is the one believed to be the safest for each
address). Not recommended. This is known to corrupt the Atmel
AT24RF08 EEPROM found on many IBM Thinkpad laptops.
-r Use SMBus "read byte" commands for probing (by default, the com-
mand used is the one believed to be the safest for each
address). Not recommended. This is known to lock SMBus on vari-
ous write-only chips (most notably clock chips at address 0x69).
-V Display the version and exit.
-l Output a list of installed busses.
Frodo Looijaard, Mark D. Studebaker, and the lm_sensors group
http://www.lm-sensors.nu/ This manual page was written by Aurelien
Jarno <firstname.lastname@example.org>, for the Debian GNU/Linux system. It was
then reviewed by the lm_sensors team and is now part of the lm_sensors
September 2004 I2CDETECT(8)
Man(1) output converted with