<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Hello, </div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
I have the need to pass input events from a hypervisor host into a guest running weston. I already have a custom protocol in weston to share surfaces with the host, and I'm hoping it makes sense to extend it to send input back to the guest.</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
So does it make sense to route these input events through libweston? <span style="color: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">I've found the functions: notify_key(), notify_button(), notify_motion_absolute(), etc.
I was trying to use these to inject the events but end up causing weston to segfault:</span></div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<span>[22:14:37.440] caught signal: 11<br>
</span>
<div>[22:14:37.442] [0000000000405c9a] -- (weston)<br>
</div>
<div>[22:14:37.442] [0000000000405d07] -- (weston)<br>
</div>
<div>[22:14:37.444] [00000034a0e34380] -- (/lib/libc.so.6)<br>
</div>
<div>[22:14:37.446] [00000034a321a380] notify_button (/usr/lib/libweston-3.so.0)<br>
</div>
<div>[22:14:37.447] [00007ff73b747302] -- (/usr/lib/libweston-3/drm-backend.so)<br>
</div>
<div>[22:14:37.449] [00000034a1207477] -- (/lib/libpthread.so.0)<br>
</div>
<span>[22:14:37.450] [00000034a0ef23bf] clone (/lib/libc.so.6)</span><br>
</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
I suspect I don't have a valid weston_seat, which I get like this:</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<span>struct udev_seat *udev_seat = udev_seat_get_named(input, "default");<br>
</span>
<div>struct weston_seat *seat = &udev_seat->base;<br>
</div>
</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Where "default" is the only existing seat in the list. I didn't create or add any.</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<ol>
<li>Is this the right approach? Any hints on how to make it work?</li><li><span style="color: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">One alternative I'm considering is to use uinput to create virtual input devices and send the events to that. Any other alternatives that might be more appropriate
than the above?</span><br>
</li></ol>
</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<span style="color: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">Thanks! </span><br>
</div>
<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
-JS</div>
</body>
</html>