本文整理汇总了C++中MixerGroup::load_from_file方法的典型用法代码示例。如果您正苦于以下问题：C++ MixerGroup::load_from_file方法的具体用法？C++ MixerGroup::load_from_file怎么用？C++ MixerGroup::load_from_file使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MixerGroup的用法示例。
在下文中一共展示了MixerGroup::load_from_file方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: PWM_SERVO_SET
//.........这里部分代码省略.........
ret = -EINVAL;
break;
}
/* FALLTHROUGH */
case PWM_SERVO_SET(0):
case PWM_SERVO_SET(1):
if (arg < 2100) {
channel = cmd - PWM_SERVO_SET(0);
up_pwm_servo_set(channel, arg);
} else {
ret = -EINVAL;
}
break;
case PWM_SERVO_GET(2):
case PWM_SERVO_GET(3):
if (_mode != MODE_4PWM) {
ret = -EINVAL;
break;
}
/* FALLTHROUGH */
case PWM_SERVO_GET(0):
case PWM_SERVO_GET(1): {
channel = cmd - PWM_SERVO_SET(0);
*(servo_position_t *)arg = up_pwm_servo_get(channel);
break;
}
case MIXERIOCGETOUTPUTCOUNT:
if (_mode == MODE_4PWM) {
*(unsigned *)arg = 4;
} else {
*(unsigned *)arg = 2;
}
break;
case MIXERIOCRESET:
if (_mixers != nullptr) {
delete _mixers;
_mixers = nullptr;
}
break;
case MIXERIOCADDSIMPLE: {
mixer_simple_s *mixinfo = (mixer_simple_s *)arg;
SimpleMixer *mixer = new SimpleMixer(control_callback_trampoline, (uintptr_t)this, mixinfo);
if (mixer->check()) {
delete mixer;
ret = -EINVAL;
} else {
if (_mixers == nullptr)
_mixers = new MixerGroup(control_callback_trampoline, (uintptr_t)this);
_mixers->add_mixer(mixer);
}
break;
}
case MIXERIOCADDMULTIROTOR:
/* XXX not yet supported */
ret = -ENOTTY;
break;
case MIXERIOCLOADFILE: {
const char *path = (const char *)arg;
if (_mixers != nullptr) {
delete _mixers;
_mixers = nullptr;
}
_mixers = new MixerGroup(control_callback_trampoline, (uintptr_t)this);
if (_mixers->load_from_file(path) != 0) {
delete _mixers;
_mixers = nullptr;
ret = -EINVAL;
}
break;
}
default:
ret = -ENOTTY;
break;
}
return ret;
}