sab - Infineon SAB82532 (ESCC2) serial communications driver
sab* at ebus?
sabtty* at sab?
The sab is a Infineon (formerly Siemens) SAB82532 (ESCC2)
chip used in PCI-based UltraSPARC Sun workstations.
The ESCC2 provides
two independent input/output channels per instance.
are normally used to provide RS-423 and RS232 serial ports
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
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
ioctl(2), ebus(4), intro(4), tty(4)
The sab driver first appeared in OpenBSD 3.1.
The sab does not support cua minor devices.
OpenBSD 3.6 October 29, 2001
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