Notifies clients about port events
int hsi_event(struct hsi_port * port, unsigned long event);
port
Port where the event occurred
event
The event type
Clients should not be concerned about wake line behavior. However, due to a race condition in HSI HW protocol, clients need to be notified about wake line changes, so they can implement a workaround for it.
HSI_EVENT_START_RX - Incoming wake line high HSI_EVENT_STOP_RX - Incoming wake line down
Returns -errno on error, or 0 on success.