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.

SEE ALSO

intro(4)

HISTORY

The uda driver appeared in 4.2BSD.

A new uda driver approach showed up in NetBSD 1.2.