thanks John,
But I need only GPIO based keypad not i2c based. Please help what
should be my next step after modprobing the driver. How can I define rows
and columns pins.
Someone had posted this link
https://groups.google.com/forum/#!searchin/beagleboard/matrix_keypad|sort:relevance/beagleboard/OED_rjD5dVI/lGQ2kynER0kJ
But when I compile this dts file into .dtbo , dtc compiler shows syntax
error.
root@beaglebone:/lib/firmware# dtc -O dtb -o keypad-00A0.dtbo -b 0 -@
keypad-00A0.dts
Error: keypad-00A0.dts:18.31-32 syntax error
FATAL ERROR: Unable to parse input tree
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