UAVCAN: using only primary interface for firmware update and node ID allocation

has_key is not available in python > 3.0

Add parameter to limit the maximum brightness of the RGB LED

Poll test

Fix to remove dspal version of signal.h

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Fixed poll timeout bug

The SIGCONT signal was being ignored by the HRT queue thread so the
usleep was not waking up early to process new work.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Poll test

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

- changes to allow for multi-uav support

FW landing bug

Mark FILESYSTEM_ERRCOUNT_NOTIFY_LIMIT as an unsigned int

Fix the compilationof mavlink_mission.cpp failing with

error: comparison between signed and unsigned integer expressions
[-Werror=sign-compare]

Replacing with 'in'

See https://docs.python.org/3.1/whatsnew/3.0.html#builtins

qurt: updated dspal version

Added declaration of write() call

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

qurt: Updated dspal version

Added missing extern "C" blocks

Signed-off-by: Mark Charlebois <charlebm@gmail.com>