| UDA(4) | Device Drivers Manual (vax) | UDA(4) | 
uda —
uda0 at uba? csr 0172150
uda1 at uba? csr 0160334
mscpbus* at uda?
uda driver is for UNIBUS disk controllers that use
  MSCP. Among these controllers are:
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.
uda driver appeared in
  4.2BSD.
A new uda driver approach showed up in
    NetBSD 1.2.
| February 17, 2017 | NetBSD 10.1 |