load_joystick_data(3) - Linux man page
Name
load_joystick_data - Loads joystick calibration data. Allegro game programming library.
Synopsis
#include <allegro.h>
int load_joystick_data(const char *filename);
Description
Restores calibration data previously stored by save_joystick_data() or the setup utility. This
sets up all aspects of the joystick code: you don't even need to call install_joystick() if you are using this function. Pass a NULL filename to read the data
from the currently selected configuration file.
Return Value
Returns zero on success: if it fails the joystick state is undefined and you must reinitialise
it from scratch.
See Also
install_joystick(3), save_joystick_data(3),
set_config_file(3)