From 80a469e4f4d01ad96447f85cc71a379ec82ffe2d Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Mon, 11 Oct 2010 21:16:43 +0200 Subject: [PATCH] hid: egalax: Report zero as minimum pressure 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 Cc: Stephane Chatty Signed-off-by: Jiri Kosina Signed-off-by: Henrik Rydberg --- drivers/hid/hid-egalax.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hid/hid-egalax.c b/drivers/hid/hid-egalax.c index 733bebc885db..aac8a6326bbd 100644 --- a/drivers/hid/hid-egalax.c +++ b/drivers/hid/hid-egalax.c @@ -90,6 +90,7 @@ static int egalax_input_mapping(struct hid_device *hdev, struct hid_input *hi, set_abs(input, ABS_MT_TRACKING_ID, field, 0); 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); -- 2.20.1