Dear All ，Im new to linux kernel program, and found struct pointer is difficult
to understand, that the struct s3c_i2sv2_info *i2s =
snd_soc_dai_get_drvdata(cpu_dai) means,? why is use the struct pointer assgn
another struct pointer??
static int s3c2412_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *cpu_dai)
{
struct s3c_i2sv2_info *i2s = snd_soc_dai_get_drvdata(cpu_dai);
struct s3c_dma_params *dma_data;
....................................................................
}_______________________________________________
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