i2c_transfer

Langue: en

Version: May 2009 (fedora - 06/07/09)

Section: 9 (Appels noyau Linux)

NAME

i2c_transfer - execute a single or combined I2C message

SYNOPSIS

int i2c_transfer(struct i2c_adapter * adap, struct i2c_msg * msgs, int num);

ARGUMENTS

adap

Handle to I2C bus

msgs

One or more messages to execute before STOP is issued to terminate the operation; each message begins with a START.

num

Number of messages to be executed.

DESCRIPTION

Returns negative errno, else the number of messages executed.

Note that there is no requirement that each message be sent to the same slave address, although that is the most common model.