usb_autopm_get_interface_async — increment a USB interface's PM-usage counter
int usb_autopm_get_interface_async ( | struct usb_interface * intf); |
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.