Date: Wed, 17 Nov 2004 19:39:51 +1030 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: Marcel Moolenaar <marcel@xcllnt.net> Cc: freebsd-hackers@freebsd.org Subject: Re: Userland access to modem control lines? Message-ID: <200411171940.04217.doconnor@gsoft.com.au> In-Reply-To: <062F15EA-386B-11D9-BD35-000D93C47836@xcllnt.net> References: <200411171719.16370.doconnor@gsoft.com.au> <062F15EA-386B-11D9-BD35-000D93C47836@xcllnt.net>
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On Wed, 17 Nov 2004 18:03, Marcel Moolenaar wrote:
> On Nov 16, 2004, at 10:48 PM, Daniel O'Connor wrote:
> > Hi,
> > Does anyone know of a way to manipulate the modem control lines from
> > userland?
>
> See <sys/ttycom.h>, in particular the following ioctls:
Unk thanks.
Dunce cap on :)
> #define TIOCMSET _IOW('t', 109, int) /* set all modem bits */
> #define TIOCMBIS _IOW('t', 108, int) /* bis modem bits */
> #define TIOCMBIC _IOW('t', 107, int) /* bic modem bits */
> #define TIOCMGET _IOR('t', 106, int) /* get all modem bits */
> #define TIOCM_LE 0001 /* line enable */
> #define TIOCM_DTR 0002 /* data terminal ready
> */
> #define TIOCM_RTS 0004 /* request to send */
> #define TIOCM_ST 0010 /* secondary transmit */
> #define TIOCM_SR 0020 /* secondary receive */
> #define TIOCM_CTS 0040 /* clear to send */
> #define TIOCM_DCD 0100 /* data carrier detect
> */
> #define TIOCM_RI 0200 /* ring indicate */
> #define TIOCM_DSR 0400 /* data set ready */
> #define TIOCM_CD TIOCM_DCD
> #define TIOCM_CAR TIOCM_DCD
> #define TIOCM_RNG TIOCM_RI
--
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
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