scsi_inquiry(9S)

NAME

     scsi_inquiry - SCSI inquiry structure

SYNOPSIS

     #include <sys/scsi/scsi.h>

INTERFACE LEVEL

     Solaris DDI specific (Solaris DDI).

DESCRIPTION

     The scsi_inquiry structure contains 36 required bytes,  fol-
     lowed  by  a  variable number of vendor-specific parameters.
     Bytes 59 through 95, if returned, are  reserved  for  future
     standardization.  This structure is part of  scsi_device(9S)
     structure and typically filled in by  scsi_probe(9F).

STRUCTURE MEMBERS

     uchar_t  inq_dtype;             /* Peripheral qualifier, device type */
     uchar_t  inq_rmb          :1;   /* Removable media */
     uchar_t  inq_qual         :7;   /* Device type qualifier */
     uchar_t  inq_iso          :2;   /* ISO version */
     uchar_t  inq_ecma         :3;   /* ANSI version */
     uchar_t  inq_aenc         :1;   /* Async event notification cap. */
     uchar_t  inq_trmiop       :1;   /* Supports TERMINATE I/O PROC msg */
     uchar_t  inq_rdf          :4;   /* Response data format */
     uchar_t  inq_len;               /* Additional length */
     uchar_t  inq_reladdr      :1;   /* Supports relative addressing */
     uchar_t  inq_wbus32       :1;   /* Supports 32 bit wide data xfers */
     uchar_t  inq_wbus16       :1;   /* Supports 16 bit wide data xfers */
     uchar_t  inq_sync         :1;   /* Supports synchronous data xfers */
     uchar_t  inq_linked       :1;   /* Supports linked commands */
     uchar_t  inq_cmd_que      :1;   /* Supports command queueing */
     uchar_t  inq_sftre        :1;   /* Supports Soft Reset option */
     char     inq_vid[8];            /* Vendor ID */
     char     inq_pid[16];           /* Product ID */
     char     inq_revision[4];       /* Revision level */

     inq_dtype  identifies  the  type  of  device.  Bits  0  -  4
     represent  the  Peripheral  Device  Type  and  bits  5  -  7
     represent the Peripheral Qualifier. The following values are
     appropriate for Peripheral Device Type field:

          DTYPE_ARRAY_CTRL
                Array controller device (for example, RAID).

          DTYPE_DIRECT
                Direct-access  device  (for   example,   magnetic
                disk).

          DTYPE_ESI
                Enclosure services device.

          DTYPE_SEQUENTIAL
                Sequential-access device (for  example,  magnetic
                tape).

          DTYPE_PRINTER
                Printer device.

          DTYPE_PROCESSOR
                Processor device.

          DTYPE_WORM
                Write-once  device  (for  example,  some  optical
                disks).

          DTYPE_RODIRECT
                CD-ROM device.

          DTYPE_SCANNER
                Scanner device.

          DTYPE_OPTICAL
                Optical memory device (for example, some  optical
                disks).

          DTYPE_CHANGER
                Medium Changer device (for example, jukeboxes).

          DTYPE_COMM
                Communications device.

          DTYPE_UNKNOWN
                Unknown or no device type.

          DTYPE_MASK
                Mask to isolate Peripheral Device Type field.

     The following values  are  appropriate  for  the  Peripheral
     Qualifier field:

          DPQ_POSSIBLE
                The specified peripheral device type is currently
                connected  to  this  logical unit.  If the target
                cannot determine whether or not a physical device
                is  currently  connected, it uses this peripheral
                qualifier when returning the INQUIRY  data.  This
                peripheral qualifier does not imply that the dev-
                ice is ready for access by the initiator.

          DPQ_SUPPORTED
                The target is capable of supporting the specified
                peripheral  device  type  on  this  logical unit.
                However, the physical  device  is  not  currently
                connected to this logical unit.

          DPQ_NEVER
                The target is not capable of supporting a  physi-
                cal  device on this logical unit.  For this peri-
                pheral qualifier,   the  peripheral  device  type
                shall  be set to  DTYPE_UNKNOWN to provide compa-
                tibility with previous versions of SCSI. For  all
                other  peripheral device type values, this  peri-
                pheral qualifier is reserved.

          DPQ_VUNIQ
                This is a vendor-unique qualifier.

     DTYPE_NOTPRESENT is the peripheral qualifier  DPQ_NEVER  and
     the peripheral device type DTYPE_UNKNOWN combined.

     inq_rmb, if set, indicates that the medium is removable.

     inq_qual is a device type qualifier.

     inq_iso indicates  ISO version.

     inq_ecma indicates  ECMA version.

     inq_ansi indicates  ANSI version.

     inq_aenc, if set, indicates that the device  supports  asyn-
     chronous event notification capability as defined in  SCSI-2
     specification.

     inq_trmiop, if set, indicates that the device  supports  the
     TERMINATE I/O PROCESS message.

     inq_rdf, if reset, indicates the  INQUIRY data format is  as
     specified in SCSI-1.

     inq_inq_len is the additional length  field  that  specifies
     the length in bytes of the parameters.

     inq_reladdr, if set, indicates that the device supports  the
     relative addressing mode of this logical unit.

     inq_wbus32, if set, indicates that the device  supports  32-
     bit wide data transfers.

     inq_wbus16, if set, indicates that the device  supports  16-
     bit wide data transfers.

     inq_sync, if set, indicates that the  device  supports  syn-
     chronous data transfers.

     inq_linked, if  set,  indicates  that  the  device  supports
     linked commands for this logical unit.

     inq_cmdque, if  set,  indicates  that  the  device  supports
     tagged command queueing.

     inq_sftre, if reset, indicates that the device  responds  to
     the   RESET  condition  with the hard  RESET alternative. If
     this bit is set, this indicates  that  the  device  responds
     with the soft  RESET alternative.

     inq_vid contains eight bytes of  ASCII data identifying  the
     vendor of the product.

     inq_pid contains sixteen bytes of  ASCII data as defined  by
     the vendor.

     inq_revision contains four bytes of  ASCII data  as  defined
     by the vendor.

SEE ALSO

     scsi_probe(9F), scsi_device(9S)

     ANSI Small Computer System Interface-2 (SCSI-2)

     Writing Device Drivers