aha -- Adaptec SCSI host adapter driver
device aha
device scbus
In /boot/device.hints:
hint.aha.0.at="isa"
This driver provides access to the SCSI bus connected to an Adaptec
AHA-154xA, AHA-154xB, AHA-154xC, AHA-154xCF, AHA-154xCP, or AHA-1640 host
adapter. x is 0 for controllers without a floppy drive and 2 for controllers
that have them. Host adapters supporting a 154x compatible
interface, such as some Tekram controllers and the Adaptec AHA-174x in
154x emulation mode can also be attached with this driver. For optimum
performance, Adaptec AHA-174x controllers should be configured in
enhanced mode and attached via the ahb(4) driver.
One device hint entry for every card to be attached by the system is
required. Specific values for the port address, irq, and drq may be
specified. If wildcard values are used, the driver will query the device
for its current settings and use those. If the port address is a wildcard,
the driver consults an internal table of possible port address
locations and attaches to the first unattached card it finds. The possible
port addresses for this card are 0x330, 0x334, 0x230, 0x234, 0x130,
and 0x134.
The AHA-154xCP is a plug and play controller. However, its resources are
set using the on-board BIOS and cannot be moved. Failures to attached
for this card are often caused when the resources set in the BIOS conflict
The AHA-1640 is a MCA bus card. Since the MCA bus is a self-identifying
bus, no setting of hints is required.
ahb(4), ahc(4), aic(4), cd(4), da(4), sa(4), scsi(4)
The aha driver was ported by M. Warner Losh from the bt driver written by
Justin T. Gibbs.
FreeBSD 5.2.1 October 15, 1998 FreeBSD 5.2.1 [ Back ] |
