IOPSP(4)

NAME
iopsp - I2O SCSI port driver

SYNOPSIS
iopsp* at iop?
scsibus* at iopsp?

DESCRIPTION
The iopsp driver provides support for I2O SCSI bus adapter ports and child peripherals.

IOPs present each child peripheral attached to a bus adapter port as an individual device. In order to present the appearance of a bus, the iopsp driver groups child peripherals by controlling port.

On IOPs containing a SCSI port and block or tape driver modules, some SCSI devices may not be directly accessible. For each inaccessible device, a message will be displayed during configuration. For example:

    	iopsp0: target 0,0 (tid 70): in use by tid 47

Such devices will usually be indirectly accessible as block devices, either individually or as part of an array. For accessing these, there is the ioprbs driver.

SEE ALSO
intro(4), iop(4), ioprbs(4), scsibus(4)

HISTORY
The iopsp driver first appeared in NetBSD 1.6, OpenBSD support was added in OpenBSD 3.0.

AUTHORS
-nosplit The iopsp driver was written by Andrew Doran <ad@netbsd.org> and ported to OpenBSD 3.0 by Niklas Hallqvist <niklas@openbsd.org> and Michael Shalayeff <mickey@openbsd.org>.