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audio max5556 problem: No soundcards found

Question asked by 千 浪 on Mar 4, 2015



  On my custom board, audio codec device is max5556, it is a audio DAC chip without control interface, it is connected to imx6q chip with I2S interface only.

  I use file sound/soc/codecs/wm8727.c as template because wm8727 is very similar to max5556. my source code is on attach file.


  My linux kernel version is 3.0.35.


  With log, I am sure probe function in max5556.c is called successfully, but ALSA can not found soundcard, anyone can help me?

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