Hi Ping, > @@ -1228,8 +1228,13 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev, > case TABLETPC: > if (features->device_type == BTN_TOOL_DOUBLETAP || > features->device_type == BTN_TOOL_TRIPLETAP) { > - input_set_abs_params(input_dev, ABS_RX, 0, features->x_phy, 0, 0); > - input_set_abs_params(input_dev, ABS_RY, 0, features->y_phy, 0, 0); > + /* set touch resolution in points/mm */ > + res = features->x_phy/100; > + input_abs_set_res(input_dev, ABS_X, > + features->x_max/res); It seems to me the construction above looses precision twice for no apparent reason. How about instead use "100 * features->x_max / features->x_phy"? Besides, it is a bit unfortunate that "res" is short for both result and resolution. Finally, are the physical dimensions actually presented in 100ths of millimeters? Thanks, Henrik -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html