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我现在用的内核是 board-supper/linux-3.14.43 驱动 用的是 am335x-evmsk.dts 想把声卡换成PCM4220 我想问下 有没有 PCM4220的驱动啊 在哪能找到啊，谢谢了！
您可以去http://www.deyisupport.com/question_answer/analog/audio/f/42.aspx 先问问他们驱动提供的情况，有可能和AIC310x是类似的，但是要去那边确认下。
