Technical data

mcpzsa(7D) Devices SunOS 5.5
IOCTLS The standard set of termio ioctl() calls are supported by mcpzsa.
If the CRTSCTS flag in the c_cflag is set, output will be generated only if CTS is high; if
CTS is low, output will be frozen. If the CRTSCTS flag is clear, the state ofCTS has no
effect. Breaks can be generated by the TCSBRK, TIOCSBRK, and TIOCCBRK ioctl() calls.
The modem control lines TIOCM_CAR, TIOCM_CTS, TIOCM_RTS, andTIOCM_DTR are
provided.
The input and output line speeds may be set to any of the speeds supported by termio.
The speeds cannot be set independently; when the output speed is set, the input speed is
set to the same speed.
ERRORS An open() will fail if:
ENODEV The unit being opened does not exist.
EPROTO An unsupported or non-serial protocol has been requested.
EBUSY The dial-out device is being opened and the dial-in device is already
open, or the dial-in device is being opened with a no-delay open and the
dial-out device is already open.
EBUSY The unit has been marked as exclusive-use by another process with a
TIOCEXCL ioctl( ) call.
EINTR The open was interrupted by the delivery of a signal.
FILES /dev/term/[0-127] hardwired tty lines
/dev/cua/[0-127] dial-out tty lines
SEE ALSO tip(1), uucp(1C), ldterm(7M), termio(7I), ttcompat(7M), zs(7D)
DIAGNOSTICS mcpzsanc: parity error ignored.
A parity error was detected and disregarded due to theIGNPAR flag beingset.
mcpzsanc: SCC silo overflow.
The 8530 character input silo overflowed before it could be serviced.
mcpzsanc: input ring overflow.
The driver’s character input ring buffer overflowed before it could be serviced.
NOTES The character-special device names may not always be alignedon multiples of 16 if other
serial port devices, such as SPIF devices are present on the system.
7D-206 modified 8 Mar 1993