[PATCH 2/5] input: wacom - remove pressure for touch devices
From: Ping Cheng <hidden>
Date: 2011-08-13 00:06:52
Touch devices do not report valid pressure or capacitance. Signed-off-by: Ping Cheng <redacted> --- drivers/input/tablet/wacom_sys.c | 14 -------------- drivers/input/tablet/wacom_wac.c | 6 +++--- 2 files changed, 3 insertions(+), 17 deletions(-)
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 449c0a4..36001eb 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c@@ -228,13 +228,6 @@ 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;
@@ -290,13 +283,6 @@ 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;
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index c1c2f7b..3eccf21 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c@@ -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);
--
1.7.6