save_joystick_data (3) - Linux Manuals
save_joystick_data: Saves joystick calibration data. Allegro game programming library.
Command to display save_joystick_data manual in Linux: $ man 3 save_joystick_data
 
NAME
save_joystick_data - Saves joystick calibration data. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
int save_joystick_data(const char *filename);
DESCRIPTION
After all the headache of calibrating the joystick, you may not want to 
make your poor users repeat the process every time they run your program. 
Call this function to save the joystick calibration data into the 
specified configuration file, from which it can later be read by 
load_joystick_data(). Pass a NULL filename to write the data to the 
currently selected configuration file.
RETURN VALUE
Returns zero on success, non-zero if the data could not be saved.