Created
August 30, 2012 14:20
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Pair logitec devices in Linux
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/* | |
* Copyright 2011 Benjamin Tissoires <benjamin.tissoi...@gmail.com> | |
* | |
* This program is free software: you can redistribute it and/or modify | |
* it under the terms of the GNU General Public License as published by | |
* the Free Software Foundation, either version 3 of the License, or | |
* (at your option) any later version. | |
* | |
* This program is distributed in the hope that it will be useful, | |
* but WITHOUT ANY WARRANTY; without even the implied warranty of | |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
* GNU General Public License for more details. | |
* | |
* You should have received a copy of the GNU General Public License | |
* along with this program. If not, see <http://www.gnu.org/licenses/>. | |
*/ | |
// gcc -o unifying_pair unifying_pair.c | |
#include <linux/input.h> | |
#include <linux/hidraw.h> | |
#include <sys/ioctl.h> | |
#include <fcntl.h> | |
#include <unistd.h> | |
#include <stdio.h> | |
#include <errno.h> | |
#define USB_VENDOR_ID_LOGITECH (__u32)0x046d | |
#define USB_DEVICE_ID_UNIFYING_RECEIVER (__s16)0xc52b | |
#define USB_DEVICE_ID_UNIFYING_RECEIVER_2 (__s16)0xc532 | |
int main(int argc, char **argv) | |
{ | |
int fd; | |
int res; | |
struct hidraw_devinfo info; | |
char magic_sequence[] = {0x10, 0xFF, 0x80, 0xB2, 0x01, 0x00, 0x00}; | |
if (argc == 1) { | |
errno = EINVAL; | |
perror("No hidraw device given"); | |
return 1; | |
} | |
/* Open the Device with non-blocking reads. */ | |
fd = open(argv[1], O_RDWR|O_NONBLOCK); | |
if (fd < 0) { | |
perror("Unable to open device"); | |
return 1; | |
} | |
/* Get Raw Info */ | |
res = ioctl(fd, HIDIOCGRAWINFO, &info); | |
if (res < 0) { | |
perror("error while getting info from device"); | |
} else { | |
if (info.bustype != BUS_USB || | |
info.vendor != USB_VENDOR_ID_LOGITECH || | |
(info.product != USB_DEVICE_ID_UNIFYING_RECEIVER && | |
info.product != USB_DEVICE_ID_UNIFYING_RECEIVER_2)) { | |
errno = EPERM; | |
perror("The given device is not a Logitech " | |
"Unifying Receiver"); | |
return 1; | |
} | |
} | |
/* Send the magic sequence to the Device */ | |
res = write(fd, magic_sequence, sizeof(magic_sequence)); | |
if (res < 0) { | |
printf("Error: %d\n", errno); | |
perror("write"); | |
} else if (res == sizeof(magic_sequence)) { | |
printf("The receiver is ready to pair a new device.\n" | |
"Switch your device on to pair it.\n"); | |
} else { | |
errno = ENOMEM; | |
printf("write: %d were written instead of %ld.\n", res, | |
sizeof(magic_sequence)); | |
perror("write"); | |
} | |
close(fd); | |
return 0; | |
} |
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If one knows his input device path one may also use this Shell-only version:
https://gist.github.com/superm00s/15879e7f4f376fa4e6c3