static int cmp_op_mode(const void *elt, const void *key, size_t size) {
const op_mode_entry_t *e1 = elt;
const op_mode_entry_t *e2 = key;
static int cmp_op_mode(const void *elt, const void *key, size_t size) {
const op_mode_entry_t *e1 = elt;
const op_mode_entry_t *e2 = key;