MPT_EVENT_REGISTER(9) Message-based devices MPT_EVENT_REGISTER(9)NAME
mpt_event_register - Register protocol-specific event callback handler.
int mpt_event_register(u8 cb_idx, MPT_EVHANDLER ev_cbfunc);
previously registered (via mpt_register) callback handle
This routine can be called by one or more protocol-specific drivers if/when they choose to be notified of MPT events.
Returns 0 for success.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 MPT_EVENT_REGISTER(9)
Check Out this Related Man Page
ldi_add_event_handler(9F) Kernel Functions for Drivers ldi_add_event_handler(9F)NAME
ldi_add_event_handler - add NDI event service callback handler
int ldi_add_event_handler(ldi_handle_t lh, ddi_eventcookie_t ec,
void (*handler)(ldi_handle_t, ddi_eventcookie_t,
void *, void *) void *arg, ldi_callback_id_t *id);
Layered handle representing event notification device.
Cookie returned from call to ldi_get_eventcookie(9F).
void (*handler)(ldi_handle_t, ddi_eventcookie_t, void *, void *)
Callback handler for NDI event service notification.
Pointer to opaque data supplied by caller. Typically, this is a pointer to the layered driver's softstate structure.
Pointer to registration id, where a unique registration id is returned. Registration id must be saved and used when calling
ldi_remove_event_handler(9F) to unregister a callback handler.
This function is obsolete and is only maintained for compatibility. Use of this function is strongly discouraged. For equivalent function-
ality provided by new interfaces, see ldi_ev_get_cookie(9F) and ldi_ev_register_callbacks(9F).
The ldi_add_event_handler() function adds a callback handler to be invoked at the occurance of the event specified by the cookie. Adding a
callback handler is also known as subscribing to an event. Upon successful subscription, the handler is invoked when the event occurs. You
can unregister the handler by using ldi_remove_event_handler(9F).
An instance of a layered driver can register multiple handlers for an event or a single handler for multiple events. Callback order is not
defined and should be assumed to be random.
The routine handler is invoked with the following arguments:
ldi_handle_t lh Layered handle representing the device for which the event notification is requested.
ddi_eventcookie_t ec Structure describing event that occurred.
void *arg Opaque data pointer provided by the driver during callback registration.
void *impl_data Pointer to event specific data defined by the framework that invokes the callback function.
DDI_SUCCESS Callback handler registered successfully.
DDI_FAILURE Failed to register callback handler. Possible reasons include lack of resources or a bad cookie.
The ldi_add_event_handler() function can be called from user and kernel contexts only.
SEE ALSO ldi_ev_get_cookie(9F), ldi_ev_register_callbacks(9F), ldi_get_eventcookie(9F), ldi_remove_event_handler(9F)
Writing Device Drivers
Layered drivers must remove all registered callback handlers for a device instance, represented by the layered handle, by calling
ldi_remove_event_handler(9F) before the layered driver's detach(9E) routine completes.
SunOS 5.11 21 Aug 2007 ldi_add_event_handler(9F)
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