ioctl to keyboard device file.

[P.Manohar]

hai,
     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.


  Thanks&Regards,
  P.Manohar,
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