centos man page for usb_autopm_get_interface_async

USB_AUTOPM_GET_INTER(9) 					   USB Core APIs					   USB_AUTOPM_GET_INTER(9)

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 device is suspended. The differences are that it does not perform any synchronization (callers should hold a private lock and handle
       all synchronization issues themselves), and it does not autoresume the device directly (it only queues a request). After a successful call,
       the device may not yet be resumed.

       This routine can run in atomic context.

RETURN
       0 on success. A negative error code otherwise.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   USB_AUTOPM_GET_INTER(9)