linux音频控制在驱动中一般是一个主设备号,一堆次设备号,我的开发板上对应的音频接口如下 查看声卡驱动 ls -l /dev/snd/* /dev/snd/controlC0 /dev/snd/pcmC1D0c /dev/snd/pcmC2D0p/dev/snd/controlC1 /dev/snd/pcmC1D0p /dev/snd/pcmC3D0c/dev
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