i2sbus_pcm_prepare_both 405 sound/aoa/soundbus/i2sbus/i2sbus-core.c i2sbus_pcm_prepare_both(i2sdev); i2sbus_pcm_prepare_both 108 sound/aoa/soundbus/i2sbus/i2sbus.h extern void i2sbus_pcm_prepare_both(struct i2sbus_dev *i2sdev);