* Coleman Kane <[EMAIL PROTECTED]> [010326 22:40] wrote:
> Yeah, that's basically what I had to do in tdfx. You can take a look int
> src/sys/dev/tdfx/tdfx_pci.c under tdfx_ioctl(...) to get an idea of what
> needs to be done, if you need more info. Tdfx basically implements the
> API from device_3dfx in Linux.
Is there anyone we can PLEAD with to explain that to the linnux people
that that's a broken way to implement ioctl()?
> Alfred Perlstein had the audacity to say:
> >
> > * Roger Hardiman <[EMAIL PROTECTED]> [010326 05:37] wrote:
> > > Hi,
> > > I'm porting the some linux telephony API drivers over
> > > to FreeBSD.
> > >
> > > But the author of the linux driver used the 'hack' of
> > > returning values from the ioctls as the error result.
> > >
> > > eg volume = ioctl (fd, IXJ_GET_VOLUME)
> > >
> > > instead of using
> > > error = ioctl (fd, IXJ_GET_VOLUME, &volume);
> > >
> > >
> > > Naturally I want to keep the API the same on FreeBSD
> > > so existing apps will compile without change.
> > > But right now it looks like I cannot do this.
> > >
> > > Is there anything I can do in the FreeBSD driver
> > > or in existing source to help, without imposing
> > > a new 'BSD' API.
> >
> > I just woke up.... er, try this:
> >
> > p->p_retval[0] = your_return_value;
> >
> > in your ioctl code... or are you saying that the ioctl code
> > spams over it?
> >
> > --
> > -Alfred Perlstein - [[EMAIL PROTECTED]|[EMAIL PROTECTED]]
> > Represent yourself, show up at BABUG http://www.babug.org/
> >
> > To Unsubscribe: send mail to [EMAIL PROTECTED]
> > with "unsubscribe freebsd-hackers" in the body of the message
> >
--
-Alfred Perlstein - [[EMAIL PROTECTED]|[EMAIL PROTECTED]]
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