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adw (4)
>> adw (4) ( FreeBSD man: Специальные файлы /dev/* )
BSD mandoc
NAME
adw
- Advansys PCI 16bit SCSI Host adapter driver
SYNOPSIS
To compile this driver into the kernel,
place the following lines in your
kernel configuration file:
device pcidevice scbusdevice adw
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.
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.
An -nosplit
The
driver was ported by
An Justin T. Gibbs
from the Linux driver written by
An Bob Frey
of Advanced System Products, Inc.
Many thanks to AdvanSys for providing the original driver
under a suitable license for use in
Fx .
