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aha (4)
  • >> aha (4) ( FreeBSD man: Специальные файлы /dev/* )

  • BSD mandoc
     

    NAME

    
    
    aha
    
     - Adaptec SCSI host adapter driver
    
     
    

    SYNOPSIS

    To compile this driver into the kernel, place the following lines in your kernel configuration file:
    device scbus device aha

    Alternatively, to load the driver as a module at boot time, place the following line in loader.conf5:

    aha_load="YES"
    

    In /boot/device.hints hint.aha.0.at=isa  

    DESCRIPTION

    This driver provides access to the SCSI bus connected to the Adaptec AHA-154x and AHA-1640 SCSI host adapters. x is 0 for controllers without a floppy drive and 2 for controllers that have them. 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-1640 is an MCA bus card. Since the MCA bus is a self-identifying bus, no setting of hints is required.  

    HARDWARE

    The driver supports the following SCSI host adapters:

     

    SEE ALSO

    ahb(4), ahc(4), aic(4), cd(4), da(4), sa(4), scsi(4)  

    AUTHORS

    An -nosplit The driver was ported by An M. Warner Losh from the bt driver written by An Justin T. Gibbs .  

    BUGS

    The AHA-154xA card does not support residuals on data transfers. As a result, this card is no longer supported.

    There have been some reports that the AHA-154xB does not work well under heavy load.

    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.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    HARDWARE
    SEE ALSO
    AUTHORS
    BUGS


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