完整程式請看 https://github.com/bseibold/tpkbdctl
針對聯想/IBM的小紅帽鍵盤，控制小紅帽的敏感度的程式如下。
#include <stdio.h>#include <stdlib.h>#include <fcntl.h>#include <unistd.h>#include <sys/ioctl.h>#include <linux/types.h>#include <linux/input.h>#include <linux/hiddev.h>#include <linux/hidraw.h>#define HIDIOCSFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x06, len)#define HIDIOCGFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x07, len)int find_device() { int i, fd, ret, descsize; char name[255]; struct hidraw_devinfo devinfo; for (i=0; i<255; i++) { snprintf(name, 255, "/dev/hidraw%d", i); fd = open(name, O_RDWR|O_NONBLOCK); if (!fd) continue; ret = ioctl(fd, HIDIOCGRAWINFO, &devinfo); if (ret) { close(fd); continue; } if (devinfo.vendor != 0x17ef || devinfo.product != 0x6009) { close(fd); continue; } ret = ioctl(fd, HIDIOCGRDESCSIZE, &descsize); if (ret || descsize < 100) { close(fd); continue; } fprintf(stderr, "Found device at %s\n", name); return fd; } return 0;}int main(int argc, char* argv[]) { int val1 = 0; int val2 = 0; int val3 = 0; int fd, ret; char buf[5]; if (argc > 1) { val1 = atoi(argv[1]); val2 = atoi(argv[2]); val3 = atoi(argv[3]); /* sensitivity = atoi(argv[1]); */ } fd = find_device(); if (!fd) { fprintf(stderr, "No device found.\n"); exit(1); } buf[0] = 4; buf[1] = 0x6a; buf[2] = val1; buf[3] = val2; buf[4] = val3; fprintf(stderr, "Setting values %d, %d, %d\n", val1, val2, val3); ret = ioctl(fd, HIDIOCSFEATURE(5), buf); if (ret < 0) { close(fd); fprintf(stderr, "Error, could not set sensitivity (%d)\n", ret); exit(1); } close(fd);}