I am new to seL4. I want to use seL4 in my project. As a starting point,
I have compiled seL4 for Raspberry pi 3. As a next step, I have been
trying to access GPIOs on Raspberry Pi. I used gpio.h from
util_libs/libplatsupport/arch_include/arm/platsupport. I could not find
any gpio.c for Rpi3/bcm2837 platform. When I compile the code, I am
getting error: undefined reference to `gpio_sys_init'. Is there any
support for GPIO access already available for Raspberry Pi?
Could you please provide me guidance on how I can work with the
Raspberry Pi GPIOs with seL4.
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