Including User Context Header Files

The four user context entry point routines require your module to include several header files. You already have included the types.h header file, the ddi.h header file, and the sunddi.h header file. You need to include the file.h, errno.h, open.h, cred.h, and uio.h header files.

The following code is the list of header files that you now should have included in your dummy.c file for all the entry points you have written in this section and the previous two sections:

#include <sys/modctl.h>  /* used by modlinkage, modldrv, _init, _info, */
                         /* and _fini */
#include <sys/types.h>   /* used by open, close, read, write, prop_op, */
                         /* and ddi_prop_op */
#include <sys/file.h>    /* used by open, close */
#include <sys/errno.h>   /* used by open, close, read, write */
#include <sys/open.h>    /* used by open, close, read, write */
#include <sys/cred.h>    /* used by open, close, read */
#include <sys/uio.h>     /* used by read */
#include <sys/stat.h>    /* defines S_IFCHR used by ddi_create_minor_node */
#include <sys/cmn_err.h> /* used by all entry points for this driver */
#include <sys/ddi.h>     /* used by all entry points for this driver */
                         /* also used by ddi_get_instance and */
                         /* ddi_prop_op */
#include <sys/sunddi.h>  /* used by all entry points for this driver */
                         /* also used by ddi_create_minor_node, */
                         /* ddi_get_instance, and ddi_prop_op */