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From: Henrik Rydberg <rydberg@euromail.se>
Date: Sun, 5 Sep 2010 19:25:11 +0000 (-0700)
Subject: Input: wacom - add fuzz parameters to features
X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Fdtor%2Finput.git;a=commitdiff_plain;h=fed87e655a2c20468d628b37424af58287803afe
Input: wacom - add fuzz parameters to features
The signal-to-noise ratio varies between devices, but currently all
devices are treated the same way. Add fuzz parameters to the feature
struct, allowing for tailored treatment of devices.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 42ba369..e510e4f 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -333,8 +333,12 @@ static int wacom_retrieve_hid_descriptor(struct usb_interface *intf,
struct usb_host_interface *interface = intf->cur_altsetting;
struct hid_descriptor *hid_desc;
- /* default device to penabled */
+ /* default features */
features->device_type = BTN_TOOL_PEN;
+ features->x_fuzz = 4;
+ features->y_fuzz = 4;
+ features->pressure_fuzz = 0;
+ features->distance_fuzz = 0;
/* only Tablet PCs need to retrieve the info */
if ((features->type != TABLETPC) && (features->type != TABLETPC2FG))
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 6e29bad..6d7e164 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -951,9 +951,12 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
__set_bit(BTN_TOUCH, input_dev->keybit);
- input_set_abs_params(input_dev, ABS_X, 0, features->x_max, 4, 0);
- input_set_abs_params(input_dev, ABS_Y, 0, features->y_max, 4, 0);
- input_set_abs_params(input_dev, ABS_PRESSURE, 0, features->pressure_max, 0, 0);
+ input_set_abs_params(input_dev, ABS_X, 0, features->x_max,
+ 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);
__set_bit(ABS_MISC, input_dev->absbit);
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 99e1a54..d769e9a 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -73,6 +73,10 @@ struct wacom_features {
int y_phy;
unsigned char unit;
unsigned char unitExpo;
+ int x_fuzz;
+ int y_fuzz;
+ int pressure_fuzz;
+ int distance_fuzz;
};
struct wacom_shared {
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