mpt_register
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## Name

mpt_register — Register protocol-specific main callback handler.

## Synopsis

`u8 mpt_register (` | MPT_CALLBACK | cbfunc,
| MPT_DRIVER_CLASS | dclass`)`;

## Arguments

`cbfunc`

  callback function pointer

`dclass`

  Protocol driver's class (`MPT_DRIVER_CLASS` enum value)

## Description

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.

## NOTES

The SCSI protocol driver currently calls this routine thrice in order to register separate callbacks; one for “normal” SCSI IO; one for MptScsiTaskMgmt requests; one for Scan/DV requests.

Returns u8 valued “handle” 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.

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