'\" t
.\"     Title: scsi_mode_sense
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: SCSI mid layer
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "SCSI_MODE_SENSE" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "SCSI mid layer"
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.SH "NAME"
scsi_mode_sense \- issue a mode sense, falling back from 10 to six bytes if necessary\&.
.SH "SYNOPSIS"
.HP \w'int\ scsi_mode_sense('u
.BI "int scsi_mode_sense(struct\ scsi_device\ *\ " "sdev" ", int\ " "dbd" ", int\ " "modepage" ", unsigned\ char\ *\ " "buffer" ", int\ " "len" ", int\ " "timeout" ", int\ " "retries" ", struct\ scsi_mode_data\ *\ " "data" ", struct\ scsi_sense_hdr\ *\ " "sshdr" ");"
.SH "ARGUMENTS"
.PP
\fIsdev\fR
.RS 4
SCSI device to be queried
.RE
.PP
\fIdbd\fR
.RS 4
set if mode sense will allow block descriptors to be returned
.RE
.PP
\fImodepage\fR
.RS 4
mode page being requested
.RE
.PP
\fIbuffer\fR
.RS 4
request buffer (may not be smaller than eight bytes)
.RE
.PP
\fIlen\fR
.RS 4
length of request buffer\&.
.RE
.PP
\fItimeout\fR
.RS 4
command timeout
.RE
.PP
\fIretries\fR
.RS 4
number of retries before failing
.RE
.PP
\fIdata\fR
.RS 4
returns a structure abstracting the mode header data
.RE
.PP
\fIsshdr\fR
.RS 4
place to put sense data (or NULL if no sense to be collected)\&. must be SCSI_SENSE_BUFFERSIZE big\&.
.RE
.SH "DESCRIPTION"
.PP
Returns zero if unsuccessful, or the header offset (either 4 or 8 depending on whether a six or ten byte command was issued) if successful\&.
.SH "AUTHORS"
.PP
\fBJames Bottomley\fR <\&James.Bottomley@hansenpartnership.com\&>
.RS 4
Author.
.RE
.PP
\fBRob Landley\fR <\&rob@landley.net\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br