'\" t
.\"     Title: scsi_report_opcode
.\"    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_REPORT_OPCODE" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "SCSI mid layer"
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.SH "NAME"
scsi_report_opcode \- Find out if a given command opcode is supported
.SH "SYNOPSIS"
.HP \w'int\ scsi_report_opcode('u
.BI "int scsi_report_opcode(struct\ scsi_device\ *\ " "sdev" ", unsigned\ char\ *\ " "buffer" ", unsigned\ int\ " "len" ", unsigned\ char\ " "opcode" ");"
.SH "ARGUMENTS"
.PP
\fIsdev\fR
.RS 4
scsi device to query
.RE
.PP
\fIbuffer\fR
.RS 4
scratch buffer (must be at least 20 bytes long)
.RE
.PP
\fIlen\fR
.RS 4
length of buffer
.RE
.PP
\fIopcode\fR
.RS 4
opcode for command to look up
.RE
.SH "DESCRIPTION"
.PP
Uses the REPORT SUPPORTED OPERATION CODES to look up the given opcode\&. Returns \-EINVAL if RSOC fails, 0 if the command opcode is unsupported and 1 if the device claims to support the command\&.
.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