From: Tom Kovar (lan_kova@rcvie.co.at)
Date: 09/15/93


From: lan_kova@rcvie.co.at (Tom Kovar)
Subject: linux/mgetty again...
Date: Wed, 15 Sep 1993 08:06:53 GMT


  Sorry to return back to this topic, but I still have some small problems
with mgetty/sendfax.

  I am using the ACEEX 1496 faxmodem under Linux .99.8 and mgetty/sendfax
0.13. After enforcing the hardware flow control (mapping the ioctl calls to
tc{get,set}attr), sending faxes is working perfectly. The only problem is
faxrec. The received faxes are legible (somehow), but many lines are corrupted;
even g3topbm reports a problem of premature EOF, so I had to hack it in order
to get something at least. I fear the problem might still be the flow control,
but dunno...

  Another surprising fact is that sending a fax at 14400 bps sendfax consumes
only about 10% CPU (80386, 33 MHz), whereas receiving at 9600 mgetty consumes
something in the region 70-95 % CPU !! I seem to have noticed that even during
the fax receive, OPOST and OCRNL are active; is it quite OK?

  Would appreciate any hint, thanks in advance,
                                                                Tom

-- 

___ / ___ / ____/ Dr. Tomas Kovar / / / / / Alcatel Austria Research Centre ___ / ___ / __/ A-1210 Wien, Ruthnergasse 1-7 / / / / / Tel: +43/1/391621-283 Fax: +43/1/391452 __/ __/ __/ __/ __/ E-Mail: Tom.Kovar@rcvie.co.at