check settable ability of level settings
Checks if a rig can *set* a level setting. Since the level is an OR'ed bitwise argument, more than one level can be check at the same time.
EXAMPLE: if (rig_has_set_level(my_rig, RIG_LVL_RFPOWER)) crank_tx();
Referenced by rig_set_level().
Here is the caller graph for this function: