'\" t
.\"     Title: request_firmware
.\"    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: Device drivers infrastructure
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "REQUEST_FIRMWARE" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Device drivers infrastructure"
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.SH "NAME"
request_firmware \- send firmware request and wait for it
.SH "SYNOPSIS"
.HP \w'int\ request_firmware('u
.BI "int request_firmware(const\ struct\ firmware\ **\ " "firmware_p" ", const\ char\ *\ " "name" ", struct\ device\ *\ " "device" ");"
.SH "ARGUMENTS"
.PP
\fIfirmware_p\fR
.RS 4
pointer to firmware image
.RE
.PP
\fIname\fR
.RS 4
name of firmware file
.RE
.PP
\fIdevice\fR
.RS 4
device for which firmware is being loaded
.RE
.SH "DESCRIPTION"
.PP
\fIfirmware_p\fR
will be used to return a firmware image by the name of
\fIname\fR
for device
\fIdevice\fR\&.
.PP
Should be called from user context where sleeping is allowed\&.
.PP
\fIname\fR
will be used as
\fB$FIRMWARE\fR
in the uevent environment and should be distinctive enough not to be confused with any other firmware image for this or any other device\&.
.PP
Caller must hold the reference count of
\fIdevice\fR\&.
.PP
The function can be called safely inside device\*(Aqs suspend and resume callback\&.
.SH "COPYRIGHT"
.br