'\" t
.\"     Title: snd_ac97_bus
.\"    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: Control/Mixer API
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "SND_AC97_BUS" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Control/Mixer API"
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.SH "NAME"
snd_ac97_bus \- create an AC97 bus component
.SH "SYNOPSIS"
.HP \w'int\ snd_ac97_bus('u
.BI "int snd_ac97_bus(struct\ snd_card\ *\ " "card" ", int\ " "num" ", struct\ snd_ac97_bus_ops\ *\ " "ops" ", void\ *\ " "private_data" ", struct\ snd_ac97_bus\ **\ " "rbus" ");"
.SH "ARGUMENTS"
.PP
\fIcard\fR
.RS 4
the card instance
.RE
.PP
\fInum\fR
.RS 4
the bus number
.RE
.PP
\fIops\fR
.RS 4
the bus callbacks table
.RE
.PP
\fIprivate_data\fR
.RS 4
private data pointer for the new instance
.RE
.PP
\fIrbus\fR
.RS 4
the pointer to store the new AC97 bus instance\&.
.RE
.SH "DESCRIPTION"
.PP
Creates an AC97 bus component\&. An struct snd_ac97_bus instance is newly allocated and initialized\&.
.PP
The ops table must include valid callbacks (at least read and write)\&. The other callbacks, wait and reset, are not mandatory\&.
.PP
The clock is set to 48000\&. If another clock is needed, set (*rbus)\->clock manually\&.
.PP
The AC97 bus instance is registered as a low\-level device, so you don\*(Aqt have to release it manually\&.
.SH "RETURN"
.PP
Zero if successful, or a negative error code on failure\&.
.SH "COPYRIGHT"
.br