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UDA(4) |
Kernel Interfaces Manual (VAX) |
UDA(4) |
NAME
uda — UNIBUS MSCP disk controller driver
SYNOPSIS
uda0 at uba? csr 0172150
uda1 at uba? csr 0160334
mscpbus* at uda?
DESCRIPTION
The
uda driver is for UNIBUS disk controllers that use MSCP. Among these controllers are:
-
DEC UDA50 UNIBUS ctlr
-
-
DEC KDA50 Q22 bus ctlr
-
-
DEC RQDX3 Q22 bus ctlr
-
The uda communicates with the host through a packet protocol known as the Mass Storage Control Protocol (MSCP). Consult the file <mscp/mscp.h> for a detailed description of this protocol.
HISTORY
The
uda driver appeared in
4.2BSD.
A new uda driver approach showed up in NetBSD 1.2.