Setting GPIO for one-wire communication (IMX6ULL)

[alex.tx]

To capture that pulse, you need to use a GPIO interrupt. Please check the following threads:

GPIO Interrupt issue with sysfs on Colibri IMX6 - embedded linux

Hello, I am using Colibri iMX6 DL module + Iris carrier board + Colibri_iMX6_LinuxImageV2.6_20160630, I have made the following setup to test GPIO interrupts using sysfs: Exported GPIO number 15 as output, on extension connector X16 pin 13. Exported GPIO number 51 as input along with both edges as interrupts, on extension connector X16 pin 19. Connected a jumper wire to these two pins. Now driving output on /sys/class/gpio/gpio15/value and capturing input on /sys/class/gpio/gpio51/value wo…

GPIO interrupt callback with gpiod