'\" t
.\"     Title: mpt_register
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Message-based devices
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "MPT_REGISTER" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Message-based devices"
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.SH "NAME"
mpt_register \- Register protocol\-specific main callback handler\&.
.SH "SYNOPSIS"
.HP \w'u8\ mpt_register('u
.BI "u8 mpt_register(MPT_CALLBACK\ " "cbfunc" ", MPT_DRIVER_CLASS\ " "dclass" ", char\ *\ " "func_name" ");"
.SH "ARGUMENTS"
.PP
\fIcbfunc\fR
.RS 4
callback function pointer
.RE
.PP
\fIdclass\fR
.RS 4
Protocol driver\*(Aqs class (\fBMPT_DRIVER_CLASS\fR
enum value)
.RE
.PP
\fIfunc_name\fR
.RS 4
call function\*(Aqs name
.RE
.SH "DESCRIPTION"
.PP
This routine is called by a protocol\-specific driver (SCSI host, LAN, SCSI target) to register its reply callback routine\&. Each protocol\-specific driver must do this before it will be able to use any IOC resources, such as obtaining request frames\&.
.SH "NOTES"
.PP
The SCSI protocol driver currently calls this routine thrice in order to register separate callbacks; one for
\(lqnormal\(rq
SCSI IO; one for MptScsiTaskMgmt requests; one for Scan/DV requests\&.
.PP
Returns u8 valued
\(lqhandle\(rq
in the range (and S\&.O\&.D\&. order) {N,\&.\&.\&.,7,6,5,\&.\&.\&.,1} if successful\&. A return value of MPT_MAX_PROTOCOL_DRIVERS (including zero!) should be considered an error by the caller\&.
.SH "COPYRIGHT"
.br