hid: egalax: Correct for device resolution report error

The firmware of both supported devices report a X/Y maximum of 4095,
whereas in reality, it is eight times larger. Fixed with this patch.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Stephane Chatty <chatty@enac.fr>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

diff --git a/drivers/hid/hid-egalax.c b/drivers/hid/hid-egalax.c
index 5be513c..733bebc 100644 (file)
--- a/drivers/hid/hid-egalax.c
+++ b/drivers/hid/hid-egalax.c
@@ -54,6 +54,7 @@ static int egalax_input_mapping(struct hid_device *hdev, struct hid_input *hi,
        case HID_UP_GENDESK:
                switch (usage->hid) {
                case HID_GD_X:
+                       field->logical_maximum = 32760;
                        hid_map_usage(hi, usage, bit, max,
                                        EV_ABS, ABS_MT_POSITION_X);
                        set_abs(input, ABS_MT_POSITION_X, field, 0);
@@ -61,6 +62,7 @@ static int egalax_input_mapping(struct hid_device *hdev, struct hid_input *hi,
                        set_abs(input, ABS_X, field, 0);
                        return 1;
                case HID_GD_Y:
+                       field->logical_maximum = 32760;
                        hid_map_usage(hi, usage, bit, max,
                                        EV_ABS, ABS_MT_POSITION_Y);
                        set_abs(input, ABS_MT_POSITION_Y, field, 0);