iocblk(9S)

NAME

     iocblk - STREAMS data structure for the M_IOCTL message type

SYNOPSIS

     #include <sys/stream.h>

INTERFACE LEVEL

     Architecture independent level 1 (DDI/DKI).

DESCRIPTION

     The iocblk data structure is used for passing  M_IOCTL  mes-
     sages.

STRUCTURE MEMBERS

     int         ioc_cmd;      /* ioctl command type */
     cred_t      *ioc_cr;      /* full credentials */
     uint_t      ioc_id;       /* ioctl id */
     uint_t      ioc_flag;     /* ioctl flags */
     uint_t      ioc_count;    /* count of bytes in data field */
     int         ioc_rval;     /* return value */
     int         ioc_error;    /* error code */

SEE ALSO

     STREAMS Programming Guide