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>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/hid/hid-egalax.c b/drivers/hid/hid-egalax.c
index 5be513c363e3..733bebc885db 100644
--- 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);