'\" t
.\"     Title: snd_pcm_lib_get_vmalloc_page
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: Sound Devices
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "SND_PCM_LIB_GET_VMAL" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "Sound Devices"
.\" -----------------------------------------------------------------
.\" * 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_pcm_lib_get_vmalloc_page \- map vmalloc buffer offset to page struct
.SH "SYNOPSIS"
.HP \w'struct\ page\ *\ snd_pcm_lib_get_vmalloc_page('u
.BI "struct page * snd_pcm_lib_get_vmalloc_page(struct\ snd_pcm_substream\ *\ " "substream" ", unsigned\ long\ " "offset" ");"
.SH "ARGUMENTS"
.PP
\fIsubstream\fR
.RS 4
the substream with a buffer allocated by
\fBsnd_pcm_lib_alloc_vmalloc_buffer\fR
.RE
.PP
\fIoffset\fR
.RS 4
offset in the buffer
.RE
.SH "DESCRIPTION"
.PP
This function is to be used as the page callback in the PCM ops\&.
.SH "RETURN"
.PP
The page struct, or
\fBNULL\fR
on failure\&.
.SH "COPYRIGHT"
.br