Copyright (c) 1986 Regents of the University of California.
All rights reserved. The Berkeley software License Agreement
specifies the terms and conditions for redistribution.
@(#)vx.4 6.1 (Berkeley) 11/24/86
All rights reserved. The Berkeley software License Agreement
specifies the terms and conditions for redistribution.
@(#)vx.4 6.1 (Berkeley) 11/24/86
VIOC 4 ""
C 7 NAME
vioc - VIOC-X communications multiplexer
SYNOPSIS
device vx0 at vba0 csr 0xfe4000
DESCRIPTION
A VIOC-X provides 16 communication lines with partial modem control,
adequate for UNIX dialup use.
Each line attached to the VIOC-X communications multiplexer
behaves as described in
tty (4) and may be set to run at any of 16 speeds; see
tty (4) for the encoding.
Each VIOC-X controller uses 3 entries in the SCB for command terminated, acknowledge, and unsolicited (input) interrupts. These entries start at 0x40 for the 1st controller, 0x44 for the 2nd, etc.
FILES
/dev/tty[0-9][0-9]
"SEE ALSO"
tty(4)