struct input_dev *idev;
 
        /* config */
-       unsigned int keycodes[CAP1106_NUM_CHN];
+       unsigned short keycodes[CAP1106_NUM_CHN];
 };
 
 static const struct reg_default cap1106_reg_defaults[] = {
        for (i = 0; i < CAP1106_NUM_CHN; i++)
                __set_bit(priv->keycodes[i], priv->idev->keybit);
 
+       __clear_bit(KEY_RESERVED, priv->idev->keybit);
+
+       priv->idev->keycode = priv->keycodes;
+       priv->idev->keycodesize = sizeof(priv->keycodes[0]);
+       priv->idev->keycodemax = ARRAY_SIZE(priv->keycodes);
+
        priv->idev->id.vendor = CAP1106_MANUFACTURER_ID;
        priv->idev->id.product = CAP1106_PRODUCT_ID;
        priv->idev->id.version = rev;