1. A

    Trigger an interrupt when the value of a memory location is modified in FreeBSD

    Is it possible to generate an interrupt when the value of a variable or memory location get modified in FreeBSD or Linux environment using C program ? In a C application there is an dynamically allocated array which is being used/modified from multiple locations. The application is pretty large...
  2. A

    How to apply for GPIO interrupt in kernel

    Hi everybody, Recently I transplanted an i2c device to FreeBSD on Raspberry 3b+, and needed to use a GPIO interrupt function. When using the gpio_alloc_intr_resource () function, it always returned NULL. I don’t know what went wrong. And attach DTS configuration : touchscreen@5d {...
  3. aragats

    GPIO Interrupts handling (ARM)

    How to handle GPIO interrupts on BeagleBoard, Raspberry Pi etc. from the user space? That's under TODO at: although the page was edited 1.5 years ago.