'\" t
.\"     Title: i2c_add_adapter
.\"    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_ADD_ADAPTER" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "I2C and SMBus Subsystem"
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.SH "NAME"
i2c_add_adapter \- declare i2c adapter, use dynamic bus number
.SH "SYNOPSIS"
.HP \w'int\ i2c_add_adapter('u
.BI "int i2c_add_adapter(struct\ i2c_adapter\ *\ " "adapter" ");"
.SH "ARGUMENTS"
.PP
\fIadapter\fR
.RS 4
the adapter to add
.RE
.SH "CONTEXT"
.PP
can sleep
.SH "DESCRIPTION"
.PP
This routine is used to declare an I2C adapter when its bus number doesn\*(Aqt matter or when its bus number is specified by an dt alias\&. Examples of bases when the bus number doesn\*(Aqt matter: I2C adapters dynamically added by USB links or PCI plugin cards\&.
.PP
When this returns zero, a new bus number was allocated and stored in adap\->nr, and the specified adapter became available for clients\&. Otherwise, a negative errno value is returned\&.
.SH "COPYRIGHT"
.br