Date: Wed, 17 Nov 2004 17:18:52 +1030 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: freebsd-hackers@freebsd.org Subject: Userland access to modem control lines? Message-ID: <200411171719.16370.doconnor@gsoft.com.au>
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--nextPart12368324.QZVX1XDbdm Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi, Does anyone know of a way to manipulate the modem control lines from userla= nd? SVR4 has termiox and friends but I can't see an equivalent for FreeBSD. The reason I ask is I am trying to talk to an RS485 bus - it is half duplex= =20 and the protocol converter uses RTS to control the data direction. I have a kernel driver which handles this but it has it's limitations (eg=20 takes over the port and boot up, only usable on certain devices). I'm going to make it a line discipline eventually, but this was a stepping= =20 stone. Thanks. =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart12368324.QZVX1XDbdm Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQBBmvRs5ZPcIHs/zowRApb4AJ4zuG2Qo3iFimpnCydaq/1+D9U28wCeNZVZ 89n6Gc8AJiH0Upl4iDyopRs= =2MLl -----END PGP SIGNATURE----- --nextPart12368324.QZVX1XDbdm--
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