Re: ioctl to keyboard device file

[Marcel Holtmann <marcel@holtmann.org>]

Hi,

> >>>>       I want to add a new ioctl to keyboard driver device file which will
> >>>> perform the work of copying user space data  sent to it into kernel
> >>>> space and send those characters  to handle_scancode function of keyboard
> >>>> driver.. Now I want to know
> >>>>
> >>>> 1) what is the device file corresponding to keyboard (is it
> >>>> /dev/input/keyboard).
> >>>> 2) where file operations structure is defined for that.
> >>>> 3) where the those ioctls handled(not found in keyboard.c).
> >>>>
> >>>> Any small help is appreciated.
> >>>
> >>> why not using uinput for this job?
> >>
> >>    Thanks for the solution.  I did the above task, by defining a new
> >> character device driver and sending ioctl to it. and calling
> >> handle_scancode from it. Now I want
> >> to do the same task with in the keyboard driver. For that I need to send
> >> ioctl to keyboard device file.
> >> For that only I asked the
> >> above doubts.
> >
> > what your are trying to do looks wrong to me. Why don't you use uinput.
> > It is there and it is the correct thing for the job.
> >
> 
> Can u pl. tell what uinput will do,
> Can u have any idea about the way That I want it to do.

with uinput you can write your own input driver (keyboards, mice etc.)
in the userspace. So you create a keyboard device driven by uinput and
feed your key strokes from the other machine to it.

Regards

Marcel