Part Number: AM3358
Tool/software: Linux
through kernel module able to detect the gpio interrupt
....
static irq_handler_t gpio_irq_handler(unsigned int irq, void *dev_id, struct pt_regs *regs)
{
numberPresses++; // Global counter, will be outputted when the module is unloaded
return (irq_handler_t) IRQ_HANDLED; // Announce that the IRQ has been handled correctl
}
/// This next calls are mandatory -- they identify the initialization function
/// and the cleanup function (as above).
module_init(bgpio_init);
module_exit(bgpio_exit);
please provide me the sample code of gpio interrupt in user space .how to link kernel model interrupt with userspace program
