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From: Mohammad Hedayati <hedayati.mo@gmail.com>
Date: Fri, 24 Dec 2010 18:16:44 +0330
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Subject: Re: Inappropriate ioctl for device
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On Fri, Dec 24, 2010 at 6:00 PM, C. P. Ghost <cpghost@cordula.ws> wrote:

> On Fri, Dec 24, 2010 at 11:21 AM, Mohammad Hedayati
> <hedayati.mo@gmail.com> wrote:
> > I'm writing a simple char device. So far everything went so good
> > (read/write), but here I'm going to add support for ioctl.
> >
> > int
> > ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flags, struct
> thread *td)
> > {
> >      int error = 0;
> >      uprintf("Here...\n");
> >      return(error);
> > }
> > and I'm calling it here:
> >
> > len = ioctl(cd, 0);
> > perror("ioctl");
> >
> > but when runnig it says:
> >
> > ioctl: Inappropriate ioctl for device
>
> Just a wild guess: are you sure you've hooked up your
> ioctl() function to the struct cdevsw, i.e. something
> like this?
>
> static struct cdevsw yourdevice_cdevsw = {
>        .d_version =    D_VERSION,
>        .d_read =       yourdevice_read,
>        .d_write =      yourdevice_write,
>        .d_ioctl =      yourdevice_ioctl,     /* <--- or just ioctl? */
>        .d_name =       "yourdevice",
> };
>
> Perhaps you could ask on freebsd-hackers@ list instead?
>
> > where's the problem?
>
> -cpghost.
>
> --
> Cordula's Web. http://www.cordula.ws/
>

Yes, I did. Thanks!