Date: Fri, 1 Sep 2000 14:03:22 -0500 From: "Jim King" <jim@jimking.net> To: "James Housley" <jim@thehousleys.net> Cc: "Gary Kline" <kline@thought.org>, "Warner Losh" <imp@village.org>, <freebsd-stable@FreeBSD.ORG> Subject: Re: bad 16550A maybe? Message-ID: <004201c01447$4d7e24c0$a44b8486@jking> References: <200009010501.WAA54972@tao.thought.org> <200009011832.MAA37168@harmony.village.org> <002d01c01444$350c8b00$a44b8486@jking> <39AFFB82.48810283@thehousleys.net>
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James Housley wrote: > Jim King wrote: > > > > I think we'd see a lot fewer of these messages on the mailing lists if sio.c > > set the 16550A trigger level to 8 bytes instead of 14 bytes. That's the > > first thing I do when I see this problem, and that usually fixes it; much > > easier than replacing the misbehaving hardware. :-) > > > Is this the right place to do that? > > --- sio.c.orig Wed Aug 16 09:29:34 2000 > +++ sio.c Fri Sep 1 14:53:47 2000 > @@ -2345,7 +2345,7 @@ > * latencies are larger. > */ > com->fifo_image = t->c_ospeed <= 4800 > - ? FIFO_ENABLE : FIFO_ENABLE | > FIFO_RX_HIGH; > + ? FIFO_ENABLE : FIFO_ENABLE | > FIFO_RX_MEDH; > #ifdef COM_ESP > /* > * The Hayes ESP card needs the fifo DMA mode bit set Yep. Jim To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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