MirOS Manual: osiop(4)

OSIOP(4)                   BSD Programmer's Manual                    OSIOP(4)


     osiop - Symbios/NCR 53C710 SCSI driver


     osiop* at gsc? irq 9                   (hppa)
     osiop0 at pcctwo0 offset 0x47000 ipl 2 (mvme88k)
     scsibus* at osiop?


     The osiop driver provides support for the Symbios/NCR 53C710 SCSI con-
     troller chip.

     The Symbios/NCR 53C700 SCSI controller is handled by the oosiop(4)
     driver, while the Symbios/NCR 53C8xx PCI SCSI host adapters are handled
     by the siop(4) driver.


     The osiop driver supports the following flags for use in config(8) files:

     bits 0-7:   disable disconnect/reselect for the corresponding SCSI target
     bits 8-15:  disable synchronous negotiation for SCSI target
     bits 16:    disable DMA interrupts

     "Target" is synonymous with SCSI ID number.

     Note that SCSI tape drives should be allowed to perform
     disconnect/reselect or performance will suffer.


     cd(4), ch(4), intro(4), oosiop(4), scsi(4), sd(4), siop(4), ss(4), st(4),



     The osiop driver first appeared in NetBSD 1.6.

     The original NCR 53C710 driver appeared in NetBSD 1.0 amiga port, and
     Izumi Tsutsui <tsutsui@ceres.dti.ne.jp> modified the driver and made it

MirOS BSD #10-current           March 12, 2004                               1

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