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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 essentially the same thing as
usb_autopm_put_interface: it decrements intf´s usage counter and queues
a delayed autosuspend request if the counter is <= 0. The difference is
that it does not acquire the device´s pm_mutex; callers must 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
Kernel Hackers Manual 2.6. November 2013 USB_AUTOPM_PUT_INTER(9)
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