Messages in this thread Patch in this message | | | From | "Henrik Rydberg" <> | Subject | [PATCH 4/7] hid: egalax: Report zero as minimum pressure (rev2) | Date | Mon, 29 Nov 2010 08:43:29 +0100 |
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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@philmerk.de> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> --- 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 b3a1139..a6ab617 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); -- 1.7.1
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