Date: Wed, 09 Jul 1997 13:41:04 -0400 From: Paul Werkowski <pw@snoopy.mv.com> To: freebsd-mobile@freebsd.org Subject: polling in sio.c Message-ID: <199707091741.NAA01725@snoopy.mv.com>
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I have this Megahertz XJ4288 modem that has been flashed to work at 33.6 Kbaud. I managed to get it working on 2.2.1 with the PAO kit only by using polled mode. I spent a half Saturday trying to figure out why it got only 1.6 KB thoughput on BSD (works better on Win95). My conclusion is that the on-chip FIFO is 16 Bytes polled at 100 Hz. Question, is polled mode a true feature of sio.c or just a lucky accident? Any reason not to base the poll interval on the port line speed? Regards, Paul Werkowski pw@snoopy.mv.com
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