On the rock3a debian-bullseye system, libmraa has been installed by default. The mraa_pwm_init in the following code fails to run. Is there any solution?
/* initialize mraa for the platform (not needed most of the times) */
if (MRAA_SUCCESS != mraa_init()) {
fprintf(stderr, "Failed to mraa_init\n");
return EXIT_FAILURE;
}
//! [Interesting]
pwm = mraa_pwm_init(PWM);
if (pwm == NULL) {
fprintf(stderr, "Failed to initialize PWM\n");
mraa_deinit();
return EXIT_FAILURE;
}