To include any of these functions/drivers in your project...
1/ Specify the path to the LCDLIB. If none defined, default is $(CHIBIOS)/ext/lcd
2/ In your project Makefile (amongst similiar lines but after the hal line) add the line...
include $(LCDLIB)/lcd.mk
3/ In your project Makefile add the makefiles for any specific drivers you want e.g
include $(LCDLIB)/halext/drivers/touchpad/touchpadXPT2046/touchpad_lld.mk
4/ In your project halconf.h turn on the support you want eg.
/**
* @brief Enables the Touchpad subsystem.
*/
#if !defined(HAL_USE_TOUCHPAD) || defined(__DOXYGEN__)
#define HAL_USE_TOUCHPAD TRUE
#endif
5/ Do a make clean.
