Use --peek to download the first (oldest) drawing on the device but do not
delete it. This is primarily intended as a debugging option, so we can debug
the tablet handling without having to draw new drawings (which cause the
protocol messages to change slightly).
Since the tablet only has a "download oldest file" command this isn't very
useful to end users. If there are two or more files on the tablet, we can only
ever retrieve the oldest one.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Have this in the effective main() methods (or close to that anyway) instead of
hidden away in the config implementations.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>