man/man9f/ddi_remove_event_handler.9f

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 ddi_remove_event_handler 9F "2 May 2003" "SunOS 5.11" "Kernel Functions for Drivers"
 NAME
ddi_remove_event_handler - remove an NDI event service callback handler
 SYNOPSIS

#include <sys/dditypes.h>
#include <sys/sunddi.h>

int ddi_remove_event_handler(ddi_registration_id_t id);


 INTERFACE LEVEL

Solaris DDI specific (Solaris DDI).
 PARAMETERS

ddi_registration_id_t id

Unique system wide registration ID return by ddi_add_event_handler(9F)
upon successful registration.


 DESCRIPTION

The ddi_remove_event_handler() function removes the callback handler
specified by the registration id (ddi_registration_id_t). Upon
successful removal, the callback handler is removed from the system and will
not be invoked in the face of the event.
 RETURN VALUES

DDI_SUCCESS

Callback handler removed successfully.


DDI_FAILURE

Failed to remove callback handler.


 CONTEXT

The ddi_remove_event_handler() function can be called from user and
kernel contexts only.
 ATTRIBUTES

See attributes(5) for a description of the following attributes:


ATTRIBUTE TYPEATTRIBUTE VALUE
Stability LevelCommitted


 SEE ALSO

attributes(5), ddi_add_event_handler(9F),
ddi_get_eventcookie(9F)

Writing Device Drivers
 NOTES

Device drivers must remove all registered callback handlers before
detach(9E) processing for that device instance is complete.