Lines Matching full:callback

36 static struct button_callback button_callback_list[32]; /* The callback list */
41  * This function is called by other drivers to register a callback function
43  * The callback list is a static array of 32 entries (I somehow doubt many
57 int button_add_callback (void (*callback) (void), int count)  in button_add_callback()
63 	if (!callback) {  in button_add_callback()
67 	for (; (button_callback_list [lp].callback); lp++);  in button_add_callback()
68 	button_callback_list [lp].callback = callback;  in button_add_callback()
74  * This function is called by other drivers to deregister a callback function.
75  * If you attempt to unregister a callback which does not exist, it will fail
80  * at the same time, because another driver could have unregistered a callback
85 int button_del_callback (void (*callback) (void))  in button_del_callback()
88 	if (!callback) {  in button_del_callback()
92 		if ((button_callback_list [lp].callback) == callback) {  in button_del_callback()
93 			button_callback_list [lp].callback = NULL;  in button_del_callback()
105  * list of callback functions, and call any of them whose count argument
116 			if (button_callback_list [lp].callback) {  in button_consume_callbacks()
117 				button_callback_list[lp].callback();  in button_consume_callbacks()