touch_calibration_matrix Struct Reference
[General touch driver]

Calibration matrix coefficients. More...

#include <touch.h>

Data Fields
int32_t	a
	Coefficient for X panel coordinate transform.
int32_t	b
	Coefficient for X panel coordinate transform.
int32_t	c
	Offset for X panel coordinate.
int32_t	d
	Coefficient for Y panel coordinate transform.
int32_t	e
	Coefficient for Y panel coordinate transform.
int32_t	f
	Offset for Y panel coordinate.
int32_t	k
	Common denominator.

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Detailed Description

Calibration matrix coefficients.

Should be computed by touch_compute_calibration_matrix().

Definition at line 191 of file touch.h.

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Field Documentation

int32_t touch_calibration_matrix::a

Coefficient for X panel coordinate transform.

Definition at line 192 of file touch.h.

Referenced by touch_compute_calibration_matrix(), and touch_priv_process_samples().

int32_t touch_calibration_matrix::b

Coefficient for X panel coordinate transform.

Definition at line 193 of file touch.h.

Referenced by touch_compute_calibration_matrix(), and touch_priv_process_samples().

int32_t touch_calibration_matrix::c

Offset for X panel coordinate.

Definition at line 194 of file touch.h.

Referenced by touch_compute_calibration_matrix(), and touch_priv_process_samples().

int32_t touch_calibration_matrix::d

Coefficient for Y panel coordinate transform.

Definition at line 195 of file touch.h.

Referenced by touch_compute_calibration_matrix(), and touch_priv_process_samples().

int32_t touch_calibration_matrix::e

Coefficient for Y panel coordinate transform.

Definition at line 196 of file touch.h.

Referenced by touch_compute_calibration_matrix(), and touch_priv_process_samples().

int32_t touch_calibration_matrix::f

Offset for Y panel coordinate.

Definition at line 197 of file touch.h.

Referenced by touch_compute_calibration_matrix(), and touch_priv_process_samples().

int32_t touch_calibration_matrix::k

Common denominator.

Definition at line 198 of file touch.h.

Referenced by touch_compute_calibration_matrix(), and touch_priv_process_samples().

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The documentation for this struct was generated from the following file:

• include/touch/touch.h