Hi Guys,
We have a custom i.MX6 Board which has WM8985 audio codec. I developed machine level driver ( imx-wm8985.c ) looking at imx-wm8962 code. Driver loads fine without any error. "aplay -L" list the sound card. I2C interface works fine but it is write only peripheral.
But when I am trying to play a Wav file using aplay, it fails with "aplay: pcm_write:1939: write error: Input/output error".
Reading Online found that this happens when routing is incorrect. I am unable to proceed after this..Please help me to fix this issue.
Here is my device tree.
sound {
compatible = "fsl,imx6q-sabresd-wm8985",
"fsl,imx-audio-wm8985";
model = "wm8985-audio";
cpu-dai = <&ssi2>;
audio-codec = <&codec>;
audio-routing =
"Ext Spk", "SPKL",
"Ext Spk", "SPKR";
mux-int-port = <2>;
mux-ext-port = <3>;
};
Please provide me clue/hint to proceed and solve the issue. I can provide you more details if you need.
Thanks for your help.
Mohammad Jamal Mohiuddin
Software Engineer, Retail Hosp/HW
NCR Corporation India Pvt Ltd.
MohammadJamal.Mohiuddin@xxxxxxx | www.ncr.com<http://www.ncr.com>
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