1.\" $OpenBSD: sab.4,v 1.7 2005/04/08 21:30:44 jmc Exp $ 2.\" 3.\" Copyright (c) 2001 Jason L. Wright (jason@thought.net) 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18.\" DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 19.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 23.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25.\" POSSIBILITY OF SUCH DAMAGE. 26.\" 27.Dd October 29, 2001 28.Dt SAB 4 sparc64 29.Os 30.Sh NAME 31.Nm sab 32.Nd Infineon SAB82532 (ESCC2) serial communications driver 33.Sh SYNOPSIS 34.Cd "sab* at ebus?" 35.Cd "sabtty* at sab?" 36.Sh DESCRIPTION 37The 38.Nm 39is an 40.Tn Infineon 41(formerly 42.Tn Siemens ) 43SAB82532 (ESCC2) serial interface chip used in PCI-based UltraSPARC 44.Tn Sun 45workstations. 46The ESCC2 provides two independent input/output channels per instance. 47These chips are normally used to provide RS-423 and RS232 serial ports 48for general purpose use. 49.Pp 50The 51.Nm 52driver supports all of the standard 53.Xr tty 4 54ioctl calls. 55The status of the DTR, RTS, CTS, and DCD signals can be queried with 56TIOCMGET command, but, due to limitations in the hardware, 57only the DTR and RTS signals can be modified with TIOCMSET, TIOCMBIC, 58and TIOCMBIS 59.Xr ioctl 2 60commands. 61.Sh FILES 62.Bl -tag -width /dev/ttyh[0-1] -compact 63.It /dev/ttyh[0-1] 64Serial ports 65.El 66.Sh SEE ALSO 67.Xr ioctl 2 , 68.Xr ebus 4 , 69.Xr intro 4 , 70.Xr tty 4 71.Sh HISTORY 72The 73.Nm 74driver first appeared in 75.Ox 3.1 . 76.Sh BUGS 77The 78.Nm 79does not support cua minor devices. 80