'\" te
.\" Copyright (c) 2001, Sun Microsystems, Inc. All Rights Reserved
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.TH SCSI_GET_DEVICE_TYPE_SCSI_OPTIONS 9F "Nov 19, 2001"
.SH NAME
scsi_get_device_type_scsi_options \- look up per-device-type scsi-options
property
.SH SYNOPSIS
.nf
#include <sys/scsi/scsi.h>



\fBint\fR \fBscsi_get_device_type_scsi_options\fR(\fBdev_info_t  *\fR\fIdip\fR,
     \fBstruct scsi_device  *\fR\fIdevp\fR, \fBint\fR \fIdefault_scsi_options\fR);
.fi

.SH INTERFACE LEVEL
illumos DDI specific (illumos DDI).
.SH PARAMETERS
.ne 2
.na
\fB\fIdip\fR\fR
.ad
.RS 24n
Pointer to the device info node for this HBA driver.
.RE

.sp
.ne 2
.na
\fB\fIdevp\fR\fR
.ad
.RS 24n
Pointer to a \fBscsi_device\fR(9S) structure of the target.
.RE

.sp
.ne 2
.na
\fB\fIdefault_scsi_options\fR\fR
.ad
.RS 24n
Value returned if no match is found.
.RE

.SH DESCRIPTION
The \fBscsi_get_device_type_scsi_options()\fR function looks up the property
\fBdevice-type-scsi-options-list\fR, which can be specified in the HBA's
\fBdriver.conf\fR(5) file. This property allows specification of
\fBscsi-options\fR on a per-device-type basis.
.sp
.LP
The formal syntax is:
.sp
.in +2
.nf
device-type-scsi-options-list = \fI<duplet>\fR [, \fI<duplet>\fR *];
.fi
.in -2
.sp

.sp
.LP
where:
.sp
.in +2
.nf
\fI<duplet>\fR := \fI<vid+pid>\fR, \fI<scsi-options-property-name>\fR
.fi
.in -2
.sp

.sp
.LP
and:
.sp
.in +2
.nf
\fI<scsi-options-property-name>\fR = \fI<value>\fR;
.fi
.in -2
.sp

.sp
.LP
The string \fI<vid+pid>\fR is returned by the device on a SCSI inquiry command.
This string can contain any character in the range 0x20-0x7e. Characters such
as double quote (\fB"\fR) or single quote (\fB\&'\fR), which are not permitted
in property value strings, are represented by their octal equivalent (for
example, \e042 and \e047). Trailing spaces can be truncated.
.sp
.LP
For example:
.sp
.in +2
.nf
device-type-scsi-options-list=
        "SEAGATE ST32550W",  "seagate-options",
        "EXABYTE EXB-2501".  "exabyte-options",
        "IBM OEM DFHSS4S",  "ibm-options";

seagate-options = 0x78;
exabyte-options = 0x58;
ibm-options = 0x378;
.fi
.in -2
.sp

.sp
.LP
The \fBscsi_get_device_type_scsi_options()\fR function searches the list of
duplets for a matching \fBINQUIRY\fR string. If a match is found,
\fBscsi_get_device_type_scsi_options()\fR returns the corresponding value.
.SH RETURN VALUES
\fBscsi_get_device_type_scsi_options()\fR returns the \fBscsi-options\fR value
found, or if no match is found the \fBdefault_scsi_options\fR value passed in.
.SH CONTEXT
This function can be called from kernel or interrupt context.
.SH SEE ALSO
\fIWriting Device Drivers\fR