'\" t
.\"     Title: devm_input_allocate_polled_device
.\"    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: Input Subsystem
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "DEVM_INPUT_ALLOCATE_" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Input Subsystem"
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.SH "NAME"
devm_input_allocate_polled_device \- allocate managed polled device
.SH "SYNOPSIS"
.HP \w'struct\ input_polled_dev\ *\ devm_input_allocate_polled_device('u
.BI "struct input_polled_dev * devm_input_allocate_polled_device(struct\ device\ *\ " "dev" ");"
.SH "ARGUMENTS"
.PP
\fIdev\fR
.RS 4
device owning the polled device being created
.RE
.SH "DESCRIPTION"
.PP
Returns prepared
struct input_polled_dev
or
\fBNULL\fR\&.
.PP
Managed polled input devices do not need to be explicitly unregistered or freed as it will be done automatically when owner device unbinds from * its driver (or binding fails)\&. Once such managed polled device is allocated, it is ready to be set up and registered in the same fashion as regular polled input devices (using
\fBinput_register_polled_device\fR
function)\&.
.PP
If you want to manually unregister and free such managed polled devices, it can be still done by calling
\fBinput_unregister_polled_device\fR
and
\fBinput_free_polled_device\fR, although it is rarely needed\&.
.SH "NOTE"
.PP
the owner device is set up as parent of input device and users should not override it\&.
.SH "COPYRIGHT"
.br