NAME
i2cscan —
scan an IIC bus for
devices
SYNOPSIS
DESCRIPTION
The
i2cscan 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
SEE ALSO
iic(4)