Fix unintended renaming

kstars/kstars/indi/webcam/v4l2_base.cpp

@@ -414,7 +414,7 @@ int V4L2_Base::init_mmap(char *errmsg)
         req.type                = V4L2_BUF_TYPE_VIDEO_CAPTURE;
         req.memory              = V4L2_MEMORY_MMAP;
 
-	if (-1 == xioctl (fd, VIDIOC_RETQBUFS, &req)) {
+	if (-1 == xioctl (fd, VIDIOC_REQBUFS, &req)) {
                 if (EINVAL == errno) {
                         fprintf (stderr, "%s does not support "
                                  "memory mapping\n", dev_name);
@@ -422,7 +422,7 @@ int V4L2_Base::init_mmap(char *errmsg)
                                  "memory mapping\n", dev_name);
                         return -1;
                 } else {
-                        return errno_exit ("VIDIOC_RETQBUFS", errmsg);
+                        return errno_exit ("VIDIOC_REQBUFS", errmsg);
                 }
         }
 
@@ -482,13 +482,13 @@ void V4L2_Base::init_userp(unsigned int buffer_size)
         req.type                = V4L2_BUF_TYPE_VIDEO_CAPTURE;
         req.memory              = V4L2_MEMORY_USERPTR;
 
-        if (-1 == xioctl (fd, VIDIOC_RETQBUFS, &req)) {
+        if (-1 == xioctl (fd, VIDIOC_REQBUFS, &req)) {
                 if (EINVAL == errno) {
                         fprintf (stderr, "%s does not support "
                                  "user pointer i/o\n", dev_name);
                         exit (EXIT_FAILURE);
                 } else {
-                        errno_exit ("VIDIOC_RETQBUFS", errmsg);
+                        errno_exit ("VIDIOC_REQBUFS", errmsg);
                 }
         }
 

kstars/kstars/indi/webcam/videodev2.h

@@ -838,7 +838,7 @@ struct v4l2_streamparm
 #define VIDIOC_G_COMP		_IOR  ('V',  6, struct v4l2_compression)
 #define VIDIOC_S_COMP		_IOW  ('V',  7, struct v4l2_compression)
 #endif
-#define VIDIOC_RETQBUFS		_IOWR ('V',  8, struct v4l2_requestbuffers)
+#define VIDIOC_REQBUFS		_IOWR ('V',  8, struct v4l2_requestbuffers)
 #define VIDIOC_QUERYBUF		_IOWR ('V',  9, struct v4l2_buffer)
 #define VIDIOC_G_FBUF		_IOR  ('V', 10, struct v4l2_framebuffer)
 #define VIDIOC_S_FBUF		_IOW  ('V', 11, struct v4l2_framebuffer)