Messages in this thread | | | Date | Tue, 15 May 2001 13:17:19 -0700 | From | "H. Peter Anvin" <> | Subject | Re: LANANA: To Pending Device Number Registrants |
| |
James Simmons wrote: > > > > fd = open("/dev/fd0/colourspace", O_RDWR); > > Yipes!! I have to say UNIX has a tendency to teach you ioctl is the only > way. I have never thought outside of the box nor see anyone else in this > manner. This is absolutely brillant!!! I can see alot of possibilties with > this. >
By the way, since this is of general interest...
I asked the POSIX people if there was anything in the Austin (Unix 2002) draft that would prohibit this behaviour. The response was more or less of the form "we are not really sure if it's within the spec, but it is perfectly reasonable." The (only) issue seems to be whether or not the requirement to deliver ENOTDIR in cases like this is absolute or if this is a permissible extension. The way I interpret what I got back was pretty much "go for it and don't worry about it."
-hpa
-- <hpa@transmeta.com> at work, <hpa@zytor.com> in private! "Unix gives you enough rope to shoot yourself in the foot." http://www.zytor.com/~hpa/puzzle.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |