Hi cpparm,
You can change push_pull or open drain changing Register 0x53, 0x54.
Please check page 109, 110.
https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmi270-ds000.pdf
Please use our API. There is bmi2_set_int_pin_config to function to set INT pin configuration.
https://github.com/boschsensortec/BMI270-Sensor-API/
Thank you.
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