man/man9f/ldi_get_eventcookie.9f

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 ldi_get_eventcookie 9F "21 Aug 2007" "SunOS 5.11" "Kernel Functions for Drivers"
 NAME
ldi_get_eventcookie - retrieve NDI event service cookie
 SYNOPSIS

#include <sys/ddi_obsolete.h>

int ldi_get_eventcookie(ldi_handle_t lh, char *name
 ddi_eventcookie_t *ecp);


 INTERFACE LEVEL

Obsolete
 PARAMETERS

ldi_handle_t lh

Layered handle.


char *name

null-terminated string containing the event name.


ddi_eventcookie_t *ecp

Pointer to the kernel event cookie.


 DESCRIPTION

This function is obsolete and is only maintained for compatibility. Use of this
function is strongly discouraged. For equivalent functionality provided by new
interfaces, see ldi_ev_get_cookie(9F) and
ldi_ev_register_callbacks(9F).

The ldi_get_eventcookie() function queries the device tree for a cookie
matching the given event name and returns a reference to that cookie. The
search is performed by calling up the device tree hierarchy of the device
represented by the layered driver handle until the request is satisfied by a
bus nexus driver, or the top of the dev_info tree is reached.

The cookie returned by this function can be used to register a callback handler
with ldi_add_event_handler(9F).
 RETURN VALUES

DDI_SUCCESS

Cookie handle is returned.


DDI_FAILURE

Request was not serviceable by any nexus driver in the target device's
ancestral device tree hierarchy.


 CONTEXT

This function may be called from user or kernel contexts.
 SEE ALSO

ldi_ev_get_cookie(9F), ldi_ev_register_callbacks(9F),
ldi_add_event_handler(9F), ldi_remove_event_handler(9F)

Writing Device Drivers