NAME
i2cscan —
scan an IIC bus for devices
SYNOPSIS
i2cscan |
[-r] i2cdev |
DESCRIPTION
Thei2cscan utility scans the Inter-Integrated Circuit
bus (iic(4)) specified by i2cdev to determine which
addresses respond.
i2cdev can be specified with or without the /dev prefix. For example, /dev/iic0 or iic0.
Available options:
-r- scan using 1 byte reads instead of quick writes.
WARNING! Using this utility can access some devices in such a manner as to leave them in an unstable or unusable state. It can also lock up the entire iic(4) bus. Don't use this utility unless you know what you're doing and can accept all sorts of unforeseen consequences.
EXIT STATUS
The i2cscan utility exits 0 on
success, and >0 if an error occurs.
EXAMPLES
Scan the first IIC bus found on the system for devices:
i2cscan /dev/iic0