'\" t
.\"     Title: i2c_transfer
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: I2C and SMBus Subsystem
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "I2C_TRANSFER" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "I2C and SMBus Subsystem"
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.SH "NAME"
i2c_transfer \- execute a single or combined I2C message
.SH "SYNOPSIS"
.HP \w'int\ i2c_transfer('u
.BI "int i2c_transfer(struct\ i2c_adapter\ *\ " "adap" ", struct\ i2c_msg\ *\ " "msgs" ", int\ " "num" ");"
.SH "ARGUMENTS"
.PP
\fIadap\fR
.RS 4
Handle to I2C bus
.RE
.PP
\fImsgs\fR
.RS 4
One or more messages to execute before STOP is issued to terminate the operation; each message begins with a START\&.
.RE
.PP
\fInum\fR
.RS 4
Number of messages to be executed\&.
.RE
.SH "DESCRIPTION"
.PP
Returns negative errno, else the number of messages executed\&.
.PP
Note that there is no requirement that each message be sent to the same slave address, although that is the most common model\&.
.SH "COPYRIGHT"
.br