|union SIGNAL: See the Enea OSE SPI documentation for a description.|
|SIGSELECT: See the Enea OSE SPI documentation for a description.|
|ErlDrvEvent: The ErlDrvEvent is a handle to a signal number and id combination. It is passed to driver_select(3).|
|ErlDrvOseEventId: This is the id used to associate a specific signal to a certain driver instance.|
union SIGNAL *erl_drv_ose_get_signal(ErlDrvEvent drv_event)
Fetch the next signal associated with drv_event. Signals will be returned in the order which they were received and when no more signals are available NULL will be returned. Use this function in the ready_input/ready_output callbacks to get signals.
ErlDrvEvent erl_drv_ose_event_alloc(SIGSELECT signo, ErlDrvOseEventId id, ErlDrvOseEventId (*resolve_signal)(union SIGNAL* sig), void *extra)
Create a new ErlDrvEvent associated with signo, id and uses the resolve_signal function to extract the id from a signal with signo. The extra parameter can be used for additional data. See Signals in a Linked-in driver in the OSE Users Guide.
void erl_drv_ose_event_free(ErlDrvEvent drv_event)
Free a ErlDrvEvent. This should always be done in the stop_select callback when the event is no longer being used.
void erl_drv_ose_event_fetch(ErlDrvEvent drv_event, SIGSELECT *signo, ErlDrvOseEventId *id, void **extra)
Write the signal number, id and any extra data associated with drv_event into *signo and *id respectively. NULL can be also passed as signo or id in order to ignore that field.
|Ericsson AB||OSE_ERL_DRIVER (3)||ose 1.1|