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IOPSP(4)		 BSD Kernel Interfaces Manual		      IOPSP(4)

NAME
     iopsp — I2O SCSI port driver

SYNOPSIS
     iopsp* at iop? tid ?
     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.

SEE ALSO
     intro(4), iop(4), ld(4), scsi(4)

HISTORY
     The iopsp driver first appeared in NetBSD 1.5.3.

BSD			       November 8, 1999				   BSD

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