Re: uinput on headless system ...

Hi Roberto,

On Wed, Jan 13, 2016 at 11:21 PM, Dmitry Torokhov
[off-list ref] wrote:

Hi Roberto,

On Wed, Jan 13, 2016 at 09:19:39AM -0500, Roberto Alejandro Espi Munoz wrote:

quoted

Hello ... I've been searching around the web for a specific mailing
list for the uinput driver but couldn't find any.  I managed to
create an example app that injects keyboard events to the running
linux kernel succesfully when I have a keyboard attached to the
computer.  However if I run it on a keyboardless machine, like a
standalone motherboard, the uinput device fails to open.

uinput driver does not depend on presence of a physical keyboard. I'd
start looking whether uinput module is enabled on your headless box and
if it is a module verify that it is loaded.

As Dmitry said, uinput is independent of any attached hardware.
You might want to see how we managed to create new devices through
uinput by looking at libevdev[1] (see libevdev/libevdev-uinput.c).

You might actually also want to use libevdev instead of manually doing
the ioctls and processing of all the small things :)

Cheers,
Benjamin

[1] http://www.freedesktop.org/wiki/Software/libevdev/