.\" This documentation was generated from the book titled "SCSI Subsystem Interfaces", which is part of the Linux kernel source.
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.\" Documentation by: Douglas Gilbert (dgilbert@interlog.com)
.\" Documentation copyright: 2002 2003 Douglas Gilbert 
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.TH "SCSI_ADD_DEVICE" "9" "09 April 2004" "" ""

.SH NAME
scsi_add_device \- creates new scsi device (lu) instance
.SH SYNOPSIS
.sp
\fB
.sp
struct scsi_device * scsi_add_device  (struct Scsi_Host * \fIshost\fB, unsigned int \fIchannel\fB, unsigned int \fIid\fB, unsigned int \fIlun\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIshost\fB\fR
pointer to scsi host instance
.TP
\fB\fIchannel\fB\fR
channel number (rarely other than 0)
.TP
\fB\fIid\fB\fR
target id number
.TP
\fB\fIlun\fB\fR
logical unit number
.SH "DESCRIPTION"
.PP
Returns pointer to new struct scsi_device instance or 
ERR_PTR(-ENODEV) (or some other bent pointer) if something is
wrong (e.g. no lu responds at given address)
.SH "MIGHT BLOCK"
.PP
yes
.SH "NOTES"
.PP
This call is usually performed internally during a scsi
bus scan when an HBA is added (i.e. \fBscsi_add_host\fR). So it
should only be called if the HBA becomes aware of a new scsi
device (lu) after \fBscsi_add_host\fR has completed. If successful
this call we lead to \fBslave_alloc\fR and \fBslave_configure\fR callbacks
into the LLD.
.SH "DEFINED IN"
.PP
drivers/scsi/scsi_scan.c
.SH "ABOUT THIS DOCUMENT"
.PP
This documentation was generated with kernel version 2.6.0.