snd_pcm_hw_params and hw_params function call

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Hello All,

I am porting the linux 2.6.16 to my ARM board. I found a problem related to the sound codec driver.

In the sound codec driver, I defined a .hw_params function to set the IIS related DMA buffer. However,

I cannot get the runtime->period_size and runtime->frame_bits value. These values are assigned in the  
snd_pcm_hw_params function after hw_params call. 

How to resolve this problem?

Thank you!

Tyler Li

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