SAB(4) OpenBSD Programmer's Manual (SPARC64) SAB(4)NAMEsab - Infineon SAB82532 (ESCC2) serial communications driver
sab* at ebus?
sabtty* at sab?
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
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)
/dev/ttyh[0-1] Serial ports
SEE ALSOioctl(2), ebus(4), intro(4), tty(4)HISTORY
The sab driver first appeared in OpenBSD 3.1.
The sab does not support cua minor devices.
OpenBSD 4.9 May 31, 2007 OpenBSD 4.9