52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
#include <iostream>
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#include <linux/input.h>
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#include <errno.h>
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#include <dirent.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <unistd.h>
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/** Simple program to send events to /dev/input/eventX devices, useful
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for toggling LEDs and such */
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int main(int argc, char** argv)
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{
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if (argc != 5)
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{
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std::cout << "Usage: " << argv[0] << " DEVICE TYPE CODE VALUE" << std::endl;
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}
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else
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{
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const char* filename = argv[1];
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struct input_event event;
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event.type = atoi(argv[2]);
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event.code = atoi(argv[3]);
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event.value = atoi(argv[4]);
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int fd = open(filename, O_RDWR);
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if (fd < 0)
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{
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std::cout << argv[0] << ": couldn't access: " << filename << ": " << strerror(errno) << std::endl;
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}
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else
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{
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if (write(fd, &event, sizeof(event)) != sizeof(event))
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{
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std::cout << argv[0] << ": write error: " << filename << ": " << strerror(errno) << std::endl;
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}
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else
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{
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// std::cout << "Send: Event(type: " << event.type << ", code: " << event.code << ", value: " << event.value << ")" << std::endl;
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}
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close(fd);
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}
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}
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return 0;
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}
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/* EOF */
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