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ADW(4)                 FreeBSD Kernel Interfaces Manual                 ADW(4)

NAME
     adw - Advansys PCI 16bit SCSI Host adapter driver

SYNOPSIS
     controller pci
     controller adw

     For one or more SCSI busses:
     controller scbus0 at adw0

DESCRIPTION
     This driver provides access to the 16bit SCSI bus connected to the
     Advanced Systems Products, Inc.  ASC3550 Ultra, and ASC38C0800 Ultra2,
     SCSI Host Adapter chips.  AdvanSys products incorporating these chips
     include the ABP[3]940UW, ABP950UW, ABP970UW, ABP3940U2W, and ABP3950U2W.
     Both chips support, synchronous transfers (20MHz and 40MHz max
     respectively), 16bit transfers, tagged queueing, and up to 253 concurrent
     SCSI transactions.

     Per target configuration performed in the AdvanceWare menu, which is
     accessible at boot, is honored by this driver.  This includes
     synchronous/asynchronous transfers, maximum synchronous negotiation rate,
     wide transfers, disconnection, tagged queueing, and the host adapter's
     SCSI ID.  The global setting for the maximum number of tagged
     transactions allowed per target is not honored as the CAM SCSI system
     will automatically determine the maximum number of tags a device can
     receive as well as guarantee fair resource allocation among devices.

SEE ALSO
     adv(4), cd(4), da(4), sa(4), scsi(4)

AUTHORS
     The adw driver was ported by Justin T. Gibbs from the Linux driver
     written by Bob Frey of Advanced System Products, Inc.  Many thanks to
     AdvanSys for providing the original driver under a suitable license for
     use in FreeBSD.

HISTORY
     The adw driver appeared in FreeBSD 3.0.

FreeBSD 11.0-PRERELEASE        February 13, 2000       FreeBSD 11.0-PRERELEASE

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | AUTHORS | HISTORY

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