Content-type: text/html Man page of ldi_get_eventcookie

ldi_get_eventcookie

Section: Kernel Functions for Drivers (9F)
Updated: 9 Feb 2004
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NAME

ldi_get_eventcookie - Retrieve an NDI event service cookie for the device represented by the layered driver handle  

SYNOPSIS

#include <sys/sunldi.h>

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

INTERFACE LEVEL

Solaris DDI specific (Solaris DDI)  

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

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_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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Time: 02:39:40 GMT, October 02, 2010