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From: francis@hslrswi.UUCP (Francis Demierre)
Newsgroups: comp.unix.aix,comp.sys.ibm.pc.rt
Subject: Modem Lines control in RT AIX 2.2; How ?
Keywords: RT AIX2.2 MODEM
Message-ID: <1662@hslrswi.UUCP>
Date: 15 Nov 90 11:58:58 GMT
Organization: Hasler AG, CH-3000 Berne 14, Switzerland
Lines: 28

Hi Netland,

I'm using AIX 2.2 on an IBM PC RT and programming an application where I need
to manipulate serial line signals. Namely, I'd like to turn the DCD pin
on/off (Data Carrier Detect).

I found in the bsd include (/usr/include/bsd/sys/ioctl.h) the BSD IOCTL commands
and arguments to do this, i.e.:

      ioctl command: TIOCMBIS    Set the line corresponding to 1 bits in mask
                     TIOCMBIC    Reset the line corresponding to 1 bits in mask
      ioctl arg:     TIOCM_CAR or TIOCM_CD   DCD line bit mask

but they are here only for -DBSD_COMPILE_ONLY, to be able to compile/check the
program and are not supported by AIX (see in the bsd/sys/ioctl.h file).

I could not find how to perform the equivalent operations under AIX.
Could any kind soul give me some help/pointer to the correct AIX way
to do this ?

Please E-mail any answer/comments directly to me. Thanks in advance,
Francis.

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Francis Demierre       UUCP: ...!mcsun!chx400!hslrswi!francis
                       Unix mail: francis@hslrswi.UUCP
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