Difference between revisions of "GINPUT"
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=== Calibration === | === Calibration === | ||
Revision as of 00:06, 20 June 2015
GINPUT is a powerful module which provides an easy way to interface different hardware peripherals such as touchscreens to the rest of the library. It provides everything which these peripherals need in order to operate properly such as calibration routines for the touchscreens.
Contents
API reference
The API reference of the GINPUT module can be found here.
Touchscreen
A touchscreen can be interfaced very easily through the GINPUT module. It doesn't matter if it is a resistive, capacitive or any other touchscreen technology.
Board file
The board file API for the GINPUT touchscreen module looks like the following:
static void init_board(void); static bool_t getpin_pressed(void); static void aquire_bus(void); static void release_bus(void); static uint16_t read_value(uint16_t port);
Examples and a template file can be found under /drivers/ginput/touch/xxx/.
Calibration
Digital input
Also known as the Toggle driver. This driver can be used to interface common digital inputs (GPIOs). Mostly this driver is used to attach hardware buttons to a GWIN widget.
ToDo
Analog input
Also known as the Dial driver. This driver can be used to interface slow analog inputs. Mostly this driver is used to attach an analog peripheral such as a potentiometer or a sensor to a GWIN widget. It can also be used on digital inputs that emulate a graduated ratio output such as a digital "click" wheel (rotary encoder).
ToDo
