= VESA driver (GSOC 2014) =

* Student: Wolf Ramovsky 
* Mentor: Martin Děcký
* [http://www.google-melange.com/gsoc/project/details/google/gsoc2014/wolfram/5639274879778816 Project description]
* Repository: [https://code.launchpad.net/~wolf-ramovsky/helenos/vesafb lp:~wolf-ramovsky/helenos/vesafb]

== Mailing-list reports ==
[http://lists.modry.cz/private/helenos-devel/2014-April/007142.html Report #1],
[http://lists.modry.cz/private/helenos-devel/2014-June/007210.html Report #2],
[http://lists.modry.cz/private/helenos-devel/2014-July/007262.html Report #3],
[http://lists.modry.cz/private/helenos-devel/2014-July/007321.html Report #4]

== `compctl` utility ==

=== Usage ===
compctl [comp/ctl node] <command> [<arguments...>]

If the first optional parameter -- compositor control node -- is omitted, comp:0/ctl is used

Commands:

* list-vp -- Enumerate viewports attached to compositor

* list-modes <viewport id> -- Enumerate modes of selectet viewport

* set-mode <viewport id> <mode index> -- Set mode on viewport

=== Example ===
List viewports in given compositor.
{{{
/ # compctl list-vp
id        name
54        devices/\virt\fb\vsl0
}}}

List viewport modes. Output is truncated. Сurrent mode marked by asterisk, default mode -- by [default]. 
{{{
/ # compctl list-modes 54
index     properties
1         640x480 0.00 Hz
...
14        1024x768 0.00 Hz
...
37        1920x1080 0.00 Hz *     [default]
...
}}}

Switch to a different mode.
{{{
/ # compctl set-mode 54 14
}}}