Commit fed87e65 authored by Henrik Rydberg's avatar Henrik Rydberg Committed by Dmitry Torokhov
Browse files

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: default avatarHenrik Rydberg <rydberg@euromail.se>
Acked-by: default avatarPing Cheng <pingc@wacom.com>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 92944c1c

drivers/input/tablet/wacom_sys.c

+5 −1
Original line number Diff line number Diff line
@@ -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))

drivers/input/tablet/wacom_wac.c

+6 −3
Original line number Diff line number Diff line
@@ -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);

drivers/input/tablet/wacom_wac.h

+4 −0
Original line number Diff line number Diff line
@@ -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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