WDSC(4) | Device Drivers Manual (sgimips) | WDSC(4) |
wdsc
— Western
Digital WD33c93 SCSI Bus Interface Controller
wdsc* at hpc? offset ?
The wdsc
driver provides an abstraction
layer between the SCSI hardware found in multitudinous SGI machines
(including Personal Iris series, Indigo, Indy, Challenge S, Indigo2, and
Challenge M) and the machine independent SCSI drivers described in
scsibus(4).
In addition to sending the required SCSI commands to target
devices on the SCSI bus, the wdsc
driver deals with
DMA, device interrupts, sync/async negotiation, and target
disconnects/reconnects.
Wayne Knowles ported the sgimips incarnation of the
wdsc
driver from the amiga and atari ports. It first
appeared in NetBSD 1.6.
February 17, 2017 | NetBSD 10.99 |