usb_autopm_get_interface_async

Langue: en

Autres versions - même langue

Version: May 2009 (fedora - 06/07/09)

Section: 9 (Appels noyau Linux)

Sommaire

NAME

usb_autopm_get_interface_async - increment a USB interface's PM-usage counter

SYNOPSIS

int usb_autopm_get_interface_async(struct usb_interface * intf);

ARGUMENTS

intf

the usb_interface whose counter should be incremented

DESCRIPTION

This routine does much the same thing as usb_autopm_get_interface: it increments intf's usage counter and queues an autoresume request if the result is > 0. The differences are that it does not acquire the device's pm_mutex (callers must handle all synchronization issues themselves), and it does not autoresume the device directly (it only queues a request). After a successful call, the device will generally not yet be resumed.

This routine can run in atomic context.