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Date:      Fri, 24 Dec 2010 13:51:12 +0330
From:      Mohammad Hedayati <hedayati.mo@gmail.com>
To:        freebsd-questions@freebsd.org
Subject:   Inappropriate ioctl for device
Message-ID:  <AANLkTi=oUgvCMGtaayXnE%2BBW0nTbZSuuyXXkkOSg7Ccf@mail.gmail.com>
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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

where's the problem?

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