SAB(4) - Device Drivers Manual (sparc64) #
SAB(4) - Device Drivers Manual (sparc64)
NAME #
sab, sabtty - Infineon SAB82532 (ESCC2) serial communications driver
SYNOPSIS #
sab* at ebus? sabtty* at sab?
DESCRIPTION #
The
sab
is an
Infineon
(formerly
Siemens
)
SAB82532 (ESCC2) serial interface chip used in PCI-based UltraSPARC
Sun
workstations.
The ESCC2 provides two independent input/output channels per instance.
These chips are normally used to provide RS-423 and RS232 serial ports
for general purpose use.
The sab driver supports all of the standard tty(4) ioctl calls. The status of the DTR, RTS, CTS, and DCD signals can be queried with TIOCMGET command, but, due to limitations in the hardware, only the DTR and RTS signals can be modified with TIOCMSET, TIOCMBIC, and TIOCMBIS ioctl(2) commands.
FILES #
/dev/ttyh[0-1]
Serial ports
SEE ALSO #
ioctl(2), ebus(4), intro(4), tty(4)
HISTORY #
The sab driver first appeared in OpenBSD 3.1.
BUGS #
The sab does not support cua minor devices.
OpenBSD 7.5 - November 21, 2015