'\" te
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.TH DDI_REMOVE_EVENT_HANDLER 9F "May 2, 2003"
.SH NAME
ddi_remove_event_handler \- remove an NDI event service callback handler
.SH SYNOPSIS
.nf
#include <sys/dditypes.h>
#include <sys/sunddi.h>

\fBint\fR \fBddi_remove_event_handler\fR(\fBddi_registration_id_t\fR \fIid\fR);
.fi

.SH INTERFACE LEVEL
illumos DDI specific (illumos DDI).
.SH PARAMETERS
.ne 2
.na
\fB\fBddi_registration_id_t \fR\fIid\fR\fR
.ad
.RS 28n
Unique system wide registration ID return by \fBddi_add_event_handler\fR(9F)
upon successful registration.
.RE

.SH DESCRIPTION
The \fBddi_remove_event_handler()\fR function removes the callback handler
specified by the registration \fIid\fR (\fBddi_registration_id_t\fR). Upon
successful removal, the callback handler is removed from the system and will
not be invoked in the face of the event.
.SH RETURN VALUES
.ne 2
.na
\fB\fBDDI_SUCCESS\fR\fR
.ad
.RS 15n
Callback handler removed successfully.
.RE

.sp
.ne 2
.na
\fB\fBDDI_FAILURE\fR\fR
.ad
.RS 15n
Failed to remove callback handler.
.RE

.SH CONTEXT
The \fBddi_remove_event_handler()\fR function can be called from user and
kernel contexts only.
.SH ATTRIBUTES
See \fBattributes\fR(7) for a description of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Stability Level	Committed
.TE

.SH SEE ALSO
.BR attributes (7),
.BR ddi_add_event_handler (9F),
.BR ddi_get_eventcookie (9F)
.sp
.LP
\fIWriting Device Drivers\fR
.SH NOTES
Device drivers must remove all registered callback handlers before
\fBdetach\fR(9E) processing for that device instance is complete.