MAX_MAPPING_NUM
for (j = 0; j < MAX_MAPPING_NUM; j++) {
for (i = 0; i < MAX_MAPPING_NUM; i++) {
for (i = 0; i < MAX_MAPPING_NUM; i++) {
struct uvc_ctrl_sub_info* sub_infos[MAX_MAPPING_NUM];
struct uvc_ctrl_menu menus[MAX_MAPPING_NUM];