Updates to LinuxGPIO.hxx to handle slower Linux ARM boards, like the Beagles. (#299)
Updates to LinuxGPIO.hxx to handle slower Linux ARM boards, like the Beagles. (#299)


* Add export check in LinuxGpio direction seting code to handle slow processors (eg Beagleboards).

bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn