'\" t
.\"     Title: scsi_device_lookup
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: July 2017
.\"    Manual: SCSI mid layer
.\"    Source: Kernel Hackers Manual 4.12.2
.\"  Language: English
.\"
.TH "SCSI_DEVICE_LOOKUP" "9" "July 2017" "Kernel Hackers Manual 4\&.12\&" "SCSI mid layer"
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.SH "NAME"
scsi_device_lookup \- find a device given the host
.SH "SYNOPSIS"
.HP \w'struct\ scsi_device\ *\ scsi_device_lookup('u
.BI "struct scsi_device * scsi_device_lookup(struct\ Scsi_Host\ *\ " "shost" ", uint\ " "channel" ", uint\ " "id" ", u64\ " "lun" ");"
.SH "ARGUMENTS"
.PP
\fIstruct Scsi_Host * shost\fR
.RS 4
SCSI host pointer
.RE
.PP
\fIuint channel\fR
.RS 4
SCSI channel (zero if only one channel)
.RE
.PP
\fIuint id\fR
.RS 4
SCSI target number (physical unit number)
.RE
.PP
\fIu64 lun\fR
.RS 4
SCSI Logical Unit Number
.RE
.SH "DESCRIPTION"
.PP
Looks up the scsi_device with the specified
\fIchannel\fR,
\fIid\fR,
\fIlun\fR
for a given host\&. The returned scsi_device has an additional reference that needs to be released with scsi_device_put once you\*(Aqre done with it\&.
.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