Date: Fri, 30 Apr 1999 21:30:43 -0700 (PDT) From: Julian Elischer <julian@whistle.com> To: Greg Lehey <grog@lemis.com> Cc: Matthew Jacob <mjacob@feral.com>, Brad Knowles <brad@shub-internet.org>, FreeBSD current users <FreeBSD-current@FreeBSD.ORG> Subject: Re: Porting Greg Lehey's rawio.c from FreeBSD to Linux... Message-ID: <Pine.BSF.3.95.990430213010.3322E-100000@current1.whistle.com> In-Reply-To: <19990501134333.G80561@freebie.lemis.com>
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Linux had no char device last I looked.. everything is always buffered
this may have changed, but ....
On Sat, 1 May 1999, Greg Lehey wrote:
> On Friday, 30 April 1999 at 20:51:06 -0700, Matt Jacob wrote:
> >>
> >> I don't really understand why you ask a FreeBSD group about it; it's a
> >> Linux issue. FWIW, about the only area where you're liable to run
> >> into difficulties is in the disk label handling round line 300, which
> >> is pretty peripheral to the function: it's just there as one way of
> >> finding out the size of the partition. You'll need in-depth Linux
> >> information to even find out if Linux has an equivalent function.
> >
> > Open the device, and
> >
> > if (ioctl(fd, BLKGETSIZE, (caddr_t) &seeklim) < 0) {
> >
> > see <linux/fs.h>
>
> Thanks for the info. Looking at this, it looks as if this ioctl is
> for a block device. rawio uses character devices. Does that make a
> difference?
>
> Greg
> --
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