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SIOP(4)			  OpenBSD Programmer's Manual		       SIOP(4)

NAME
     siop - LSI/Symbios Logic/NCR 53c8xx SCSI interface

SYNOPSIS
     siop* at pci?

     # hppa
     siop* at mainbus? irq 3
     siop* at phatomas? irq 3
     siop* at uturn? irq 3

     scsibus* at siop?

DESCRIPTION
     The siop driver provides support for following LSI/Symbios Logic/NCR
     53c8xx and related SCSI controller chips:

	   -   53c720 and 53c770 (Fast-Wide SCSI)
	   -   53c810, 53c810a and 53c815 (Fast SCSI)
	   -   53c820, 53c825 and 53c825a (Fast-Wide SCSI)
	   -   53c860 (Ultra SCSI)
	   -   53c875 and 53c875j (Ultra-Wide SCSI)
	   -   53c876 (Dual Ultra-Wide SCSI)
	   -   53c885 (Ultra-Wide SCSI and Ethernet)
	   -   53c895 and 53c895a (Ultra2-Wide SCSI)
	   -   53c896 (PCI 64bit, dual Ultra2-Wide SCSI)
	   -   53c1010 (PCI 64bit, dual Ultra3-Wide SCSI.  NOTE: at this time
	       siop supports at most Ultra2-Wide with this chip)
	   -   53c1510D (dual Ultra2-Wide SCSI)

     siop replaces the older ncr driver which supported most of these devices.

     Older 53C700 and 53C710 controllers are supported by the oosiop(4) and
     osiop(4) drivers, respectively.

SEE ALSO
     cd(4), ch(4), intro(4), oosiop(4), osiop(4), pci(4), scsi(4), sd(4),
     st(4), uk(4)

     http://www.lsilogic.com/

HISTORY
     The siop driver first appeared in NetBSD 1.5, OpenBSD support was added
     in OpenBSD 2.9.

AUTHORS
     The siop driver was written by Manuel Bouyer <Manuel.Bouyer@lip6.fr> for
     NetBSD.  It was ported to OpenBSD with 53c1010 support added by Ken
     Westerback <krw@openbsd.org> using code from the FreeBSD sym-2 driver
     written by Gerard Roudier <groudier@FreeBSD.org>.

OpenBSD 4.9		      September 19, 2007		   OpenBSD 4.9

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