i2cscan(8) - NetBSD Manual Pages

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I2CSCAN(8)              NetBSD System Manager's Manual              I2CSCAN(8)


NAME
i2cscan -- scan an IIC bus for devices
SYNOPSIS
i2cscan [-r] i2cdev
DESCRIPTION
The i2cscan utility scans the Inter-Integrated Circuit bus (iic(4)) spec- ified 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) NetBSD 9.0 November 26, 2015 NetBSD 9.0
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