From fed87e655a2c20468d628b37424af58287803afe Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Sun, 5 Sep 2010 12:25:11 -0700 Subject: [PATCH] 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 Acked-by: Ping Cheng Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_sys.c | 6 +++++- drivers/input/tablet/wacom_wac.c | 9 ++++++--- drivers/input/tablet/wacom_wac.h | 4 ++++ 3 files changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index 42ba3691d908..e510e4fb54f7 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 6e29badb969e..6d7e1647715f 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 99e1a54cd305..d769e9aa6f10 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 { -- 2.20.1