This dulldev.c and Makefile have been successfully tested last semester, the compiling does work, however the generated .ko file cannot be installed in beaglebone due to the Error: invalid parameters
remove the unused file button.c
classify the device drivers in their folder
the basic char device driver created
Merge branch 'drivers_Ilja' of https://github.com/ilya90/BBB_EPRO into buttondriver_Weinan
Adding IRQ into the original button driver
GPIO latency test is added
merging buttondriver_Weinan branch