Register a client to receive port events
int hsi_register_port_event (
|struct hsi_client * cl, |
| ||void (*handler)
(struct hsi_client *, unsigned long
HSI client that wants to receive port events
Event handler callback
Clients should register a callback to be able to receive
events from the ports. Registration should happen after
claiming the port.
The handler can be called in interrupt context.
Returns -errno on error, or 0 on success.