android - 我如何从假装成微型电话的USB加速度传感器获取数据？

Question

这是我的第一个应用，我正在尝试从传感器获取数据。
该传感器为Digiducer，根据其网站，它使用通用USB音频驱动程序。

No drivers or DLL’s required! USB Audio drivers are standard in most operating systems (iOS, Windows, MacOS, Android) LINK

我读过USB Digital Audio Article，它说如果该设备符合类要求(它声称是这样)，则不需要安装任何特定的驱动程序。

The term driverless is a common synonym for class compliant, indicating that it is possible to use the standard features of such a peripheral without requiring an operating-system specific driver to be installed. LINK

我检查了Android support for USB audio class一章中提到的所有条件，并且传感器与它们完全匹配

Android 5.0 (API level 21) and above supports a subset of USB audio class 1 (UAC1) features:
- The Android device must act as host
- The audio format must be PCM (interface type I)
- The bit depth must be 16-bits, 24-bits, or 32-bits where 24 bits of useful audio data are left-justified within the most significant bits of the 32-bit word
- The sample rate must be either 48, 44.1, 32, 24, 22.05, 16, 12, 11.025, or 8 kHz
- The channel count must be 1 (mono) or 2 (stereo)

我不知道该怎么做才能从传感器获取数据。

Answer 1

我自己弄清楚了。
其实我什么也没做。
我只需要调用AudioManager并在输入设备中搜索设备名称

    AudioManager am = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
    AudioDeviceInfo[] adiArray = am.getDevices(1); // INPUT_DEVICES = 1

    for (AudioDeviceInfo deviceInfo : adiArray) {
        String name = deviceInfo.getProductName().toString().toLowerCase();
        if (name.contains("33d01")) {
            externalMic = deviceInfo;
            break;
        }
    }