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NAME
     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).

PARAMETERS
     handle
           An opaque pointer to a device mapping.

     devprivate
           Driver private mapping data from ddi_mapdev(9F).

DESCRIPTION
     Future releases of Solaris will provide  this  function  for
     binary  and  source  compatibility.   However, for increased
     functionality,   use    devmap_unmap(9E)    instead.     See
     devmap_unmap(9E) for details.

     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
     Example 1: Using mapdev_free()

     static void
     xxmapdev_free(ddi_mapdev_handle_t hdl, void *pvtdata)
     {
                  /* Destroy the driver private data - Device dependent */
                  ...
               kmem_free(pvtdata, sizeof (struct xxpvtdata));
     }

SEE ALSO
     exit(2),     mmap(2),     munmap(2),      mapdev_access(9E),
     mapdev_dup(9E),          segmap(9E),         ddi_mapdev(9F),
     ddi_mapdev_intercept(9F),        ddi_mapdev_nointercept(9F),
     ddi_mapdev_ctl(9S)
     Writing Device Drivers

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