+#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
+static void cit_check_button(struct gspca_dev *gspca_dev)
+{
+ int new_button_state;
+ struct sd *sd = (struct sd *)gspca_dev;
+
+ switch (sd->model) {
+ case CIT_MODEL3:
+ case CIT_IBM_NETCAM_PRO:
+ break;
+ default: /* TEST ME unknown if this works on other models too */
+ return;
+ }
+
+ /* Read the button state */
+ cit_read_reg(gspca_dev, 0x0113, 0);
+ new_button_state = !gspca_dev->usb_buf[0];
+
+ /* Tell the cam we've seen the button press, notice that this
+ is a nop (iow the cam keeps reporting pressed) until the
+ button is actually released. */
+ if (new_button_state)
+ cit_write_reg(gspca_dev, 0x01, 0x0113);
+
+ if (sd->button_state != new_button_state) {
+ input_report_key(gspca_dev->input_dev, KEY_CAMERA,
+ new_button_state);
+ input_sync(gspca_dev->input_dev);
+ sd->button_state = new_button_state;
+ }
+}
+#endif