'\" t
.\"     Title: snd_ctl_activate_id
.\"    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_CTL_ACTIVATE_ID" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Control/Mixer API"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
snd_ctl_activate_id \- activate/inactivate the control of the given id
.SH "SYNOPSIS"
.HP \w'int\ snd_ctl_activate_id('u
.BI "int snd_ctl_activate_id(struct\ snd_card\ *\ " "card" ", struct\ snd_ctl_elem_id\ *\ " "id" ", int\ " "active" ");"
.SH "ARGUMENTS"
.PP
\fIcard\fR
.RS 4
the card instance
.RE
.PP
\fIid\fR
.RS 4
the control id to activate/inactivate
.RE
.PP
\fIactive\fR
.RS 4
non\-zero to activate
.RE
.SH "DESCRIPTION"
.PP
Finds the control instance with the given id, and activate or inactivate the control together with notification, if changed\&. The given ID data is filled with full information\&.
.SH "RETURN"
.PP
0 if unchanged, 1 if changed, or a negative error code on failure\&.
.SH "COPYRIGHT"
.br