scsi_info(D3X)

NAME
     scsi_info - get information about a SCSI device

SYNOPSIS
     #include <sys/types.h>
     #include <sys/scsi.h>

     struct scsi_target_info *
     (*scsi_info[])(vertex_hdl_t lun_vhdl);

DESCRIPTION
     scsi_info issues an Inquiry command to the device corresponding to
     lun_vhdl, returning a pointer to a scsi_target_info structure, which
     contains at least the following fields:

             u_char    *si_inq;       /* inquiry data */
             u_char    *si_sense;     /* sense data from last request sense */
             u_char     si_maxq;      /* maximum queue depth for driver */
             u_char     si_qdepth;    /* max queue depth so far */
             u_char     si_qlimit:1;  /* boolean "max queue depth reached"? */
             uint       si_ha_status; /* SRH_* status bits, if supported */


DIAGNOSTICS
     If the given device does not exist, or there is an error getting the
     data, NULL is returned.

NOTES
     scsi_info is stored as a function pointer in the information hanging off
     the vertex handle corresponding to the host adapter in the hwgraph.
     Given a lun_vhdl (vertex handle of the device) the scsi_info function can
     be called as follows:

              scsi_lun_info_t           *scsi_lun_info;
              scsi_target_info_t        *scsi_info;
            ...
              scsi_lun_info = scsi_lun_info_get(lun_vhdl);
              SLI_INFO(scsi_lun_info)(lun_vhdl);
              scsi_info = (*(SCI_INQ(
                                   STI_CTLR_INFO(
                                   SLI_TARG_INFO(scsi_lun_info)))))(lun_vhdl);


SEE ALSO
     comments in /usr/include/sys/scsi.h, hwgraph.intro(D4X), scsi_alloc(D3X),
     scsi_command(D3X), scsi_free(D3X), scsi_ioctl(D3X), scsi_abort(D3X), SCSI
     chapter of the IRIX Device Driver Programmer's Guide