hsi_event — Notifies clients about port events
|struct hsi_port * port,|
|unsigned long event|
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.
Events: HSI_EVENT_START_RX - Incoming wake line high HSI_EVENT_STOP_RX - Incoming wake line down
Returns -errno on error, or 0 on success.