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AHA(4) FreeBSD Kernel Interfaces Manual AHA(4) NAME aha -- Adaptec SCSI host adapter driver SYNOPSIS device aha device scbus In /boot/device.hints: hint.aha.0.at="isa" DESCRIPTION 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 con- trollers 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 wild- card, the driver consults an internal table of possible port address locations and attaches to the first unattached card it finds. The possi- ble 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 con- flict The AHA-1640 is a MCA bus card. Since the MCA bus is a self-identifying bus, no setting of hints is required. SEE ALSO ahb(4), ahc(4), aic(4), cd(4), da(4), sa(4), scsi(4) AUTHORS The aha driver was ported by M. Warner Losh from the bt driver written by Justin T. Gibbs. FreeBSD 11.1 October 15, 1998 FreeBSD 11.1
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | AUTHORS
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