I have interfaced a hardware using the 5 Gpios on BBB.I can talk to this device using GPIOs by manually (echoing 0 and 1 to the GPIOS) writing to it in the sys/class/gpio directory by first exporting the Gpios and configuring their directions and value.It works perfectly fine. But, When I try to do the same using a user space C application I dont get the expected response.I am running this app as sudo'er and I have oscilloscope'd the timings of HIGH/LOW levels of the GPIOs and compared it with that of the manually writing procedure of GPIOS. The waveform and the timing diagrams almost matches (95%) So, What could mysteriously be missing here.?I can go deep into analyzing the wave-forms and timing diagrams as well if there is an issue in the timings of the Signals. Please advice.Thanks in advance ! -Rp
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