Date: Wed, 10 Nov 1999 03:22:09 -0500 (EST) From: Mike Nowlin <mike@argos.org> To: freebsd-hackers@FreeBSD.ORG Subject: serial (std & rocketport) ioctl? Message-ID: <Pine.LNX.4.05.9911100308210.5800-100000@jason.argos.org>
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Hate to sound like a bum, but I haven't figured out enough of the kernel to answer this one for myself..... :) Topic: serial driver We have an application that sends (not receives) data to a serial port to a set of brain-dead analyzers (and other stuff). For several reasons I don't feel motivated enough to get into here, we can't send data to more than one at a time. Under Linux, there's an ioctl() you can call (don't remember which one) to ask the kernel if the port in question has actually completed sending the data that has been sent to it. Last time I checked, this only worked for the 8250 family of parts, and not the more "advanced" boards like Cyclades & RocketPort -- that ioctl didn't exist for these boards. So, I was stuck using standard serial boards, and using this ioctl to wait for one transmission to complete before starting another one to a different port. Is there anything like this under FreeBSD? The Linux machine is on its way out (kernel version 1.2.8(!), plus failing hardware), and we've added more equipment -- I'd love to use a Cyclades or RP board for this, instead of lots of modified serial cards, and I've been using more and more FreeBSD for the machines at work... (Don't get me wrong - I love Linux, but I trust FreeBSD more for what we do at work -- medical testing.) mike To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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