Re: modifying line state manually on ttyS

Michael Buesch (freesoftwaredeveloper@web.de)
Mon, 7 Apr 2003 17:42:27 +0200

On Monday 07 April 2003 16:16, Alan Cox wrote:
> TxD is a bad choice. A lot of the hardware cannot control TXD this
> way. DTR is the usual one because it is easy to handle but there
> are other control lines you can drive directly (see TIOCGMODEM)

Oh great, you have just discovered the reason, why my driver is working
on my Pentium1-PC but not on my Pentium4-PC. It's simply not supported
by hardware. I've spent hours and hours about this. :)

My device is actually using DTR and RTS. What line could I use instead of
TxD? Is it possible to use CTS for this, although it is normally a
"input-signal", but not a "output-signal" like RTS?

Regards
Michael Buesch.

-- 
My homepage: http://www.8ung.at/tuxsoft
fighting for peace is like fu**ing for virginity


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