usb_autopm_put_interface
Prev | Chapter 5. USB Core APIs | Next

## Name

usb_autopm_put_interface — decrement a USB interface's PM-usage counter

## Synopsis

`void usb_autopm_put_interface (` | struct usb_interface * intf`)`;

## Arguments

`intf`

  the usb_interface whose counter should be decremented

## Description

This routine should be called by an interface driver when it is finished using `intf` and wants to allow it to autosuspend. A typical example would be a character-device driver when its device file is closed.

The routine decrements `intf`'s usage counter. When the counter reaches 0, a delayed autosuspend request for `intf`'s device is attempted. The attempt may fail (see `autosuspend_check`).

This routine can run only in process context.

Prev | Up | Next
usb_disable_autosuspend | Home | usb_autopm_put_interface_async