| Thanks Dave for your answer. I guess the same question has been answered several times before. For the interest reader, I've found these: http://unix.stackexchange.com/questions/4711/what-is-the-difference-between-ioctl-unlocked-ioctl-and-compat-ioctl http://lwn.net/Articles/119652/ http://www.mail-archive.com/kernelnewbies@xxxxxxxxxxxx/msg00269.html I have a remaining question, though. In the lwn article I read this: "The ioctl() system call has long been out of favor among the kernel developers, who see it as a completely uncontrolled entry point into the kernel". Is this pointing that ioctl() is planning to get removed from the kernel ? In that case what's the currently preferred mechanism for giving 'control commands' to device drivers ? Thanks again and greetings, Ezequiel. --- El mié 18-may-11, Dave Hylands <dhylands@xxxxxxxxx> escribió:
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