1 files changed, 75 insertions, 0 deletions
diff --git a/pairing_tool.c b/pairing_tool.c
new file mode 100644
index 000000000000..1d88c4c7e279
--- /dev/null
+++ b/pairing_tool.c
@@ -0,0 +1,75 @@
+/* 
+ * 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/>. 
+ */ 
+#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; 
+}