Linux Certif

Toute la documentation sur la certification Linux LPI

JSGetAttributesList

NAME

JSGetAttributesList - Joystick device attribute retrieving

SYNTAX

#include <jsw.h>

js_attribute_struct *JSGetAttributesList(

        int *total,

        const char *calibration
)

typedef struct {

        char *name;     /* Descriptive name. */

        char *device_name;   /* Device name. */

        /* Specifies that this joystick device

         * is configured and calibrated properly.

         */

        int is_configured;

        /* If true then suggests device may

         * already be opened.

         */

        int is_in_use;

        /* Device may not disconnected at the

         * moment, turned off, or driver not

         * loaded.

         */

        int not_accessable;

} js_attribute_struct;

ARGUMENTS

total

Specifies the pointer to a int return value for the total number of device attributes loaded.

calibration

Specifies the calibration file.

DESCRIPTION

The JSGetAttributesList function fetches attributes for all joysticks accessable (not just configured/calibrated) on the system. Regardless if the joystick is already initialized, in use, or available.

If calibration is NULL then some values may be set to 0 or NULL in the js_attribute_struct structure (ie members is_configured and name).

RETURN VALUE

The JSGetAttributesList function returns a pointer to a list of js_attribute_struct structures, the number of items indicated by the value set to total.

The returned list needs to be deleted with a call to JSFreeAttributesList(3).

SEE ALSO

JSIntro(3) JSFreeAttributesList(3)