Raspberry Pi Rtems-Graphical-Toolkit

Joel Sherrill joel at rtems.org
Mon May 21 13:10:27 UTC 2018

On Mon, May 21, 2018, 7:52 AM Kirspel, Kevin <Kevin-Kirspel at idexx.com>

> RTEMS LIBBSD has support for EVDEV which is a standard API for keyboard,
> mouse, and touchscreen.  Is it the best choice, I don't know.  Maybe a
> better question is "What standard input system should RTEMS support?".

That's the question.

Using the FreeBSD support has a number of advantages but I admit that I
didn't know that support was in place. I have no idea what minimum
footprint using that implies even if you don't use the TCP IP stack.

In the cpukit there has long been support for a frame buffer device
framework and a mouse input parsing library. I expect the FreeBSD support
comes with specific device support that this is weak on.

But footprint is important. Any idea how large a simple non-networked
example would be with the FreeBSD code as a base?

And we need examples and howtos. If I didn't know about it, it isn't
reasonable to expect someone new to find it. :(


> Kevin Kirspel
> Electrical Engineer - Sr. Staff
> Idexx Roswell
> 235 Hembree Park Drive
> Roswell GA 30076
> Tel: (770)-510-4444 ext. 81642
> Direct: (770)-688-1642
> Fax: (770)-510-4445
> -----Original Message-----
> From: Chris Johns [mailto:chrisj at rtems.org]
> Sent: Sunday, May 20, 2018 5:51 PM
> To: Mikhail Svetkin <mikhail.svetkin at gmail.com>; Kirspel, Kevin <
> Kevin-Kirspel at idexx.com>
> Cc: users at rtems.org; Emre Cetin <hsnemrecetin at gmail.com>
> Subject: Re: Raspberry Pi Rtems-Graphical-Toolkit
> On 16/5/18 9:39 pm, Mikhail Svetkin wrote:
> >
> > I think it will be very good if RTEMS has some kind of input subsystem
> > (keyboards,  mouse, touchscreen) with standard API.
> >
> Do you have an example standard API what would be suitable?
> Chris
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