Date: Thu, 11 Jul 1996 16:27:44 -0500 (CDT) From: Alex Nash <alex@fa.tdktca.com> To: Thomas Graichen <graichen@axp5.physik.fu-berlin.de> Cc: hackers@freebsd.org Subject: Re: sio / modem problems Message-ID: <Pine.BSF.3.91.960711161050.29928V-100000@fa.tdktca.com> In-Reply-To: <199607112048.WAA03185@titania.physik.fu-berlin.de>
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On Thu, 11 Jul 1996, Thomas Graichen wrote: > i have an internal creatix phone-master modem - which will be detected in > FreeBSD 2.0.5 but not in the 2.1.0 RELEASE or the march 2.2 snap - it's > configured for irq 2 and comport 4 (2e8) - i tried to hack the sioprobe > from 2.0.5 quickly into a 2.1.0 kernel - but it didn't help - any ideas ? > > what has changed since then - bruce or someone else do you have any idea what > may be the reason for this behavior - another modem works fine and the 2.0.5 > kernel as said before detects it fine (as linux does) ? I recently fixed a modem detection problem from someone by inserting "DELAY(1000);"'s in sioprobe() everywhere the /* EXTRA DELAY? */ comment appeared. It's a hack, but clearly some portion of that code is running too close to the edge for some (read: cheap?) serial ports (in this case it was an internal Zoom modem in a Packard Bell computer). Unfortunately I was never able to track down exactly where the problem was since each changed required recompiling the kernel on my end and then FTPing it over a 14.4 modem to the end user. As soon as this guy gets sources on his system, I'll resume tracking this down. Alex
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