Messages in this thread Patch in this message | | | From | Benjamin Tissoires <> | Subject | [PATCH v2 09/10] Input: elan_i2c - correct the width/size base value | Date | Tue, 21 May 2019 15:27:11 +0200 |
| |
*_traces are the number of antennas. width_* is thus the space between 2 antennas. Which means, we should subtract 1 to the number of antennas to divide the touchpad by the number of holes between each antenna.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
--
new in v2 --- drivers/input/mouse/elan_i2c_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index 6f4feedb7765..3375eaa9a72e 100644 --- a/drivers/input/mouse/elan_i2c_core.c +++ b/drivers/input/mouse/elan_i2c_core.c @@ -398,8 +398,8 @@ static int elan_query_device_parameters(struct elan_tp_data *data) if (error) return error; } - data->width_x = data->max_x / x_traces; - data->width_y = data->max_y / y_traces; + data->width_x = data->max_x / (x_traces - 1); + data->width_y = data->max_y / (y_traces - 1); if (device_property_read_u32(&client->dev, "touchscreen-x-mm", &x_mm) || -- 2.21.0
| |