.step = 1,
 #define AUTOGAIN_DEF 1
                        .default_value = AUTOGAIN_DEF,
-                       .flags = 0,
+                       .flags = V4L2_CTRL_FLAG_UPDATE
                },
                .set = sd_setautogain,
        },
        struct sd *sd = (struct sd *) gspca_dev;
        int avg_lum = atomic_read(&sd->avg_lum);
 
-       if (avg_lum == -1 || !sd->ctrls[AUTOGAIN].val)
+       if ((gspca_dev->ctrl_dis & (1 << AUTOGAIN)) ||
+           avg_lum == -1 || !sd->ctrls[AUTOGAIN].val)
                return;
 
        if (sd->autogain_ignore_frames > 0) {
        sd->bridge = id->driver_info & 0xff;
 
        gspca_dev->ctrl_dis = sensor_data[sd->sensor].ctrl_dis;
+#if AUTOGAIN_DEF
+       if (!(gspca_dev->ctrl_dis & (1 << AUTOGAIN)))
+               gspca_dev->ctrl_inac = (1 << GAIN) | (1 << EXPOSURE);
+#endif
 
        cam = &gspca_dev->cam;
        cam->ctrls = sd->ctrls;
                }
        }
 
+       if (sd->ctrls[AUTOGAIN].val)
+               gspca_dev->ctrl_inac = (1 << GAIN) | (1 << EXPOSURE);
+       else
+               gspca_dev->ctrl_inac = 0;
+
        return 0;
 }