AFSC(4) | Device Drivers Manual (amiga) | AFSC(4) |
afsc
— A4091 low
level SCSI interface
afsc0 at zbus0
The Amiga architecture uses a common machine independent scsi
sub-system provided in the kernel source. The machine independent drivers
that use this code access the hardware through a common interface. (see
scsibus(4)) This common
interface interacts with a machine dependent interface, such as
afsc
, which then handles the hardware specific
issues.
The afsc
interface handles things such as
DMA and interrupts as well as actually sending commands, negotiating
synchronous or asynchronous transfers and handling disconnect/reconnect of
SCSI targets. The hardware that afsc
uses is based
on the NCR53c710 SCSI chip.
The afsc
interface supports the following
Zorro III expansion cards:
The afsc
interface first appeared in
NetBSD 1.0
July 23, 1995 | NetBSD 10.99 |