Driver Entry Points                                devmapdup(9E)



NAME
     devmapdup - device mapping duplication entry point

SYNOPSIS
     #include 
     #include softc;
           mutexenter(&softc->mutex);
           /* Allocate a new private data structure */
           prvtdata = kmemalloc(sizeof (struct xxpvtdata), KMSLEP);
           /* Return the new data */
           prvtdata->off = p->off;
           prvtdata->len = p->len;
           prvtdata->ctx = p->ctx;
           prvtdata->dhp = newdhp;
           prvtdata->softc = p->softc;
           *newpvtp = prvtdata;
           mutexexit(&softc->mutex);
           return (0);
       }


SEE ALSO
     fork(2), devmapcallbackctl(9S)


     Writing Device Drivers























SunOS 5.11          Last change: 21 Jan 1997                    2