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authorHenrik Rydberg <rydberg@euromail.se>2010-09-05 12:25:11 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2010-09-05 12:57:58 -0700
commitfed87e655a2c20468d628b37424af58287803afe (patch)
tree04e683df294ce2f1eff04196f9454539f236f986 /drivers/input/tablet
parent92944c1c943647c7eb39c081feeecdd169f68ee4 (diff)
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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>
Diffstat (limited to 'drivers/input/tablet')
-rw-r--r--drivers/input/tablet/wacom_sys.c6
-rw-r--r--drivers/input/tablet/wacom_wac.c9
-rw-r--r--drivers/input/tablet/wacom_wac.h4
3 files changed, 15 insertions, 4 deletions
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 {