The firmware reports a logical minimum of one, but in order for userspace applications to correctly map all reported values to non-zero pressure, the driver needs to report a logical minimum of zero. Fixed with this patch. Tested-by: Philipp Merkel <mail@xxxxxxxxxxx> Signed-off-by: Henrik Rydberg <rydberg@xxxxxxxxxxx> --- drivers/hid/hid-egalax.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/hid/hid-egalax.c b/drivers/hid/hid-egalax.c index 3b490a3..2aba897 100644 --- a/drivers/hid/hid-egalax.c +++ b/drivers/hid/hid-egalax.c @@ -93,6 +93,7 @@ static int egalax_input_mapping(struct hid_device *hdev, struct hid_input *hi, input_set_events_per_packet(input, MAX_EVENTS); return 1; case HID_DG_TIPPRESSURE: + field->logical_minimum = 0; hid_map_usage(hi, usage, bit, max, EV_ABS, ABS_MT_PRESSURE); set_abs(input, ABS_MT_PRESSURE, field, 0); -- 1.7.1 -- 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