./_Man_Solaris_2.5_html/html9e/mapdev

Manual page for mapdev_free(9E)

mapdev_free - device mapping free entry point

SYNOPSIS

#include <sys/sunddi.h>

void prefixmapdev_free(ddi_mapdev_handle_t handle, void *devprivate);

INTERFACE LEVEL

Solaris DDI specific (Solaris DDI).

ARGUMENTS

handle: An opaque pointer to a device mapping.
devprivate: Driver private mapping data from ddi_mapdev.9f

DESCRIPTION

mapdev_free() is called when a mapping created by ddi_mapdev.9f is being destroyed. mapdev_free() receives the handle of the mapping being destroyed and a pointer to the driver private data for this mapping in devprivate.

The mapdev_free() routine is expected to free any resources that were allocated by the driver for this mapping.

CONTEXT

This function is called from user context only.

EXAMPLES

static void
xxmapdev_free(ddi_mapdev_handle_t hdl, void *pvtdata)
{
	/* Destroy the driver private data - Device dependent */
	...

	kmem_free(pvtdata, sizeof (struct xxpvtdata));
}