Infineon SAB82532 (ESCC2) serial communications
sab* at ebus?
sabtty* at 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
driver supports all of the standard
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
- Serial ports
driver first appeared in
does not support cua minor devices.