NAME
qsc —
SC26C94 quad UART controller
SYNOPSIS
qsc0 at vxtbus0
lkkbd0 at qsc0 line 2
lkms0 at qsc0 line 3
DESCRIPTION
The qsc driver provides support for the
SC26C94-driven serial ports on the VXT2000 terminals.
On these machines, line 0 is connected to the serial connector on
the back, while line 2 and line 3 are connected to the keyboard and mouse
connectors, which are driven by the lkkbd and
lkms drivers, respectively. Line 1 is not connected
to anything.
FILES
- /dev/ttyb[0-3]
DIAGNOSTICS
- qsc%d line %d: receiver overrun
- The 8 character input fifo has overflowed and incoming data has been lost.