'\" t
.\"     Title: usb_autopm_put_interface_async
.\"    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: USB Core APIs
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "USB_AUTOPM_PUT_INTER" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "USB Core APIs"
.\" -----------------------------------------------------------------
.\" * 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"
usb_autopm_put_interface_async \- decrement a USB interface\*(Aqs PM\-usage counter
.SH "SYNOPSIS"
.HP \w'void\ usb_autopm_put_interface_async('u
.BI "void usb_autopm_put_interface_async(struct\ usb_interface\ *\ " "intf" ");"
.SH "ARGUMENTS"
.PP
\fIintf\fR
.RS 4
the usb_interface whose counter should be decremented
.RE
.SH "DESCRIPTION"
.PP
This routine does much the same thing as
\fBusb_autopm_put_interface\fR: It decrements
\fIintf\fR\*(Aqs usage counter and schedules a delayed autosuspend request if the counter is <= 0\&. The difference is that it does not perform any synchronization; callers should hold a private lock and handle all synchronization issues themselves\&.
.PP
Typically a driver would call this routine during an URB\*(Aqs completion handler, if no more URBs were pending\&.
.PP
This routine can run in atomic context\&.
.SH "COPYRIGHT"
.br