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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This function is obsolete and is only maintained for compatibility.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

Index

NAME

SYNOPSIS

INTERFACE LEVEL

PARAMETERS

DESCRIPTION

RETURN VALUES

CONTEXT

SEE ALSO

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