Date: Wed, 10 Nov 1999 00:48:12 -0800 From: Mike Smith <mike@smith.net.au> To: Alfred Perlstein <bright@wintelcom.net> Cc: Mike Nowlin <mike@argos.org>, freebsd-hackers@FreeBSD.ORG Subject: Re: serial (std & rocketport) ioctl? Message-ID: <199911100848.AAA00489@dingo.cdrom.com> In-Reply-To: Your message of "Wed, 10 Nov 1999 01:11:57 PST." <Pine.BSF.4.05.9911100109290.12797-100000@fw.wintelcom.net>
next in thread | previous in thread | raw e-mail | index | archive | help
> I'm not a serial expert, but maybe the direction you need to take
> is looking at /usr/include/sys/ttycom.h, several ioctl's seem to
> be what you're looking for, noteably:
>
> #define TIOCDRAIN _IO('t', 94) /* wait till output drained */
>
> maybe that's incorrect, but i'm sure one or a combination of a few
> ioctls from that header will help you out.
The default behaviour for most serial adapters is also to defer
returning from close until the port has drained. (or timed out after
an insane period). We do support waiting on drain as a general
principle.
--
\\ Give a man a fish, and you feed him for a day. \\ Mike Smith
\\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org
\\ and he'll hate you for a lifetime. \\ msmith@cdrom.com
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199911100848.AAA00489>