table of contents
USB_AUTOPM_PUT_INTER(9) | USB Core APIs | USB_AUTOPM_PUT_INTER(9) |
NAME¶
usb_autopm_put_interface_async - decrement a USB interface's PM-usage counter
SYNOPSIS¶
void usb_autopm_put_interface_async(struct usb_interface * intf);
ARGUMENTS¶
intf
the usb_interface whose counter should be
decremented
DESCRIPTION¶
This routine does much the same thing as usb_autopm_put_interface: It decrements intf's 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.
Typically a driver would call this routine during an URB's completion handler, if no more URBs were pending.
This routine can run in atomic context.
COPYRIGHT¶
June 2024 | Kernel Hackers Manual 3.10 |