RTW_FLAG_FORCE_LOWEST_RATE
set_bit(RTW_FLAG_FORCE_LOWEST_RATE, rtwdev->flags);
clear_bit(RTW_FLAG_FORCE_LOWEST_RATE, rtwdev->flags);
test_bit(RTW_FLAG_FORCE_LOWEST_RATE, rtwdev->flags));
bool force_lowest = test_bit(RTW_FLAG_FORCE_LOWEST_RATE, rtwdev->flags);