Input: wacom - remove pressure for touch devices
authorPing Cheng <pinglinux@gmail.com>
Sat, 27 Aug 2011 06:10:02 +0000 (23:10 -0700)
committerDmitry Torokhov <dmitry.torokhov@gmail.com>
Sat, 27 Aug 2011 06:20:12 +0000 (23:20 -0700)
Touch devices do not report valid pressure or capacitance.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
drivers/input/tablet/wacom_sys.c
drivers/input/tablet/wacom_wac.c

index d27c9d91630b8d4fbe676e83353d5ee71d71c771..958b4eb6369d087b31d973446d365a8c431b2ec8 100644 (file)
@@ -229,13 +229,6 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
                                                        get_unaligned_le16(&report[i + 3]);
                                                i += 4;
                                        }
-                               } else if (usage == WCM_DIGITIZER) {
-                                       /* max pressure isn't reported
-                                       features->pressure_max = (unsigned short)
-                                                       (report[i+4] << 8  | report[i + 3]);
-                                       */
-                                       features->pressure_max = 255;
-                                       i += 4;
                                }
                                break;
 
@@ -291,13 +284,6 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
                                pen = 1;
                                i++;
                                break;
-
-                       case HID_USAGE_UNDEFINED:
-                               if (usage == WCM_DESKTOP && finger) /* capacity */
-                                       features->pressure_max =
-                                               get_unaligned_le16(&report[i + 3]);
-                               i += 4;
-                               break;
                        }
                        break;
 
index c1c2f7b28d89ba1c2eae80a354a2bef156c5dbdf..3eccf212d5b2258998ab37650a0eb8e4c83fe398 100644 (file)
@@ -818,7 +818,6 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
                                x <<= 5;
                                y <<= 5;
                        }
-                       input_report_abs(input, ABS_MT_PRESSURE, p);
                        input_report_abs(input, ABS_MT_POSITION_X, x);
                        input_report_abs(input, ABS_MT_POSITION_Y, y);
                }
@@ -1056,10 +1055,11 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
                             features->x_fuzz, 0);
        input_set_abs_params(input_dev, ABS_Y, 0, features->y_max,
                             features->y_fuzz, 0);
-       input_set_abs_params(input_dev, ABS_PRESSURE, 0, features->pressure_max,
-                            features->pressure_fuzz, 0);
 
        if (features->device_type == BTN_TOOL_PEN) {
+               input_set_abs_params(input_dev, ABS_PRESSURE, 0, features->pressure_max,
+                            features->pressure_fuzz, 0);
+
                /* penabled devices have fixed resolution for each model */
                input_abs_set_res(input_dev, ABS_X, features->x_resolution);
                input_abs_set_res(input_dev, ABS_Y, features->y_resolution);