Date: Sun, 3 Apr 2005 10:53:28 +0200 From: Espen Tagestad <espent@totem.fix.no> To: "M. Warner Losh" <imp@bsdimp.com> Cc: freebsd-mobile@freebsd.org Subject: Re: Sony Ericsson GC85 GPRS/EDGE pcmcia card Message-ID: <20050403085328.GA22324@totem.fix.no> In-Reply-To: <20050329111357.GA72575@totem.fix.no> References: <4245DEE6.9000505@modula.no> <20050329.005702.28817035.imp@bsdimp.com> <42490EBF.6020704@modula.no> <20050329.013905.97853189.imp@bsdimp.com> <20050329111357.GA72575@totem.fix.no>
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On Tue, Mar 29, 2005 at 01:13:57PM +0200, Espen Tagestad wrote: > > Right now, I'd concentrate on understanding why 4.x fails. I've run > > non-fast interrupts there as fast as 38400 w/o lost data on a 4.x > > laptop. 5.x's interrupt preformance might not be as good as 4.x's, so > > we should try to track down why interrupt latency is hurting you so > > much more than it hurts others. > > That's ok. As I said I reinstalled FreeBSD 4 now, so we can try solving > it there first. I've also tried running at 38400, see above. I think I've found something interesting here. As you said, the card my be emulating something with a much larger fifo. Have a look at this one: http://configure.sh/FreeBSD/serial.html This patch supports high speed serial "boards", but it might work with pcmcia serial devices as well. It supports baud rates up to 921600bps, which is what I am currently seeing com5 set up as in Windows after I updated the driver. Is it any limitations in how fast a pcmcia serial card can be set up? regards, Espen
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