diff mbox

[5/6] hid: egalax: Add event filtering (rev2)

Message ID 1287001824-4132-1-git-send-email-rydberg@euromail.se (mailing list archive)
State Superseded
Headers show

Commit Message

Henrik Rydberg Oct. 13, 2010, 8:30 p.m. UTC 
None
diff mbox

Patch

diff --git a/drivers/hid/hid-egalax.c b/drivers/hid/hid-egalax.c
index b8025b9..78a2b3e 100644
--- a/drivers/hid/hid-egalax.c
+++ b/drivers/hid/hid-egalax.c
@@ -27,6 +27,10 @@  MODULE_LICENSE("GPL");
 
 #define MAX_EVENTS		120
 
+/* estimated signal-to-noise ratios */
+#define SN_MOVE			1024
+#define SN_PRESSURE		32
+
 struct egalax_data {
 	__u16 x, y, z;
 	__u8 id;
@@ -59,17 +63,17 @@  static int egalax_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 			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);
+			set_abs(input, ABS_MT_POSITION_X, field, SN_MOVE);
 			/* touchscreen emulation */
-			set_abs(input, ABS_X, field, 0);
+			set_abs(input, ABS_X, field, SN_MOVE);
 			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);
+			set_abs(input, ABS_MT_POSITION_Y, field, SN_MOVE);
 			/* touchscreen emulation */
-			set_abs(input, ABS_Y, field, 0);
+			set_abs(input, ABS_Y, field, SN_MOVE);
 			return 1;
 		}
 		return 0;
@@ -96,9 +100,9 @@  static int egalax_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 			field->logical_minimum = 0;
 			hid_map_usage(hi, usage, bit, max,
 					EV_ABS, ABS_MT_PRESSURE);
-			set_abs(input, ABS_MT_PRESSURE, field, 0);
+			set_abs(input, ABS_MT_PRESSURE, field, SN_PRESSURE);
 			/* touchscreen emulation */
-			set_abs(input, ABS_PRESSURE, field, 0);
+			set_abs(input, ABS_PRESSURE, field, SN_PRESSURE);
 			return 1;
 		}
 		return 0;