open() – Initialize access and prepare device state. read() – Transfer data from kernel space to user space. write() – Accept data from user space into kernel buffers. release() – Close device and ...

Demand Peripherals, Inc., makes an FPGA-based robot controller that gives a robot or other industrial control systems the high I/O pin count and precise timing that a Linux laptop or single-board ...

#include <linux/module.h> #include <linux/init.h> #include <linux/fs.h> #include <linux/cdev.h> #include <linux/device.h> #include <linux/uaccess.h> #include <linux ...