NAME

devio − device interface

SYNTAX

#include <sys/ioctl.h>
#include <sys/devio.h>

DESCRIPTION

The file < sys/devio.h > contains the needed structure and definitions to use the DEVIOCGET ioctl request. The basic structure used by this request is shown below:

/* Structure for DEVIOCGET ioctl - device get status command */
struct devget  {
   short   category;            /* Category                   */
   short   bus;                 /* Bus                        */
   char    interface[DEV_SIZE]; /* Interface (string)         */
   char    device[DEV_SIZE];    /* Device (string)            */
   short   adpt_num;            /* Adapter number             */
   short   nexus_num;           /* Nexus or node on adapter # */
   short   bus_num;             /* Bus number                 */
   short   ctlr_num;            /* Controller number          */
   short   rctlr_num;           /* Remote controller number   */
   short   slave_num;           /* Plug or line number        */
   char    dev_name[DEV_SIZE];  /* ULTRIX device mnemonic     */
   short   unit_num;            /* ULTRIX device unit number  */
   unsigned soft_count;         /* Driver soft error count    */
   unsigned hard_count;         /* Driver hard error count    */
   long    stat;                /* Generic status mask        */
   long    category_stat;       /* Category specific mask     */
};

Special Files