This means that you can initialise a non raw Pwm pin without having to redefine
chipid as -1 (anything but -1 enables raw mode for Pwm)
Fixes#93.
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
* Exceptions only fired in constructor when it would initialise with a NULL
context causing segfaults if used any further
* Adds exception.i requirement to mraa.i for node.js and python support
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
* Allows user to set both at the same time. Will reset to previous if
* period for duty cycle fails to write
Signed-off-by: Thomas Ingleby <thomas.c.ingleby@intel.com>
