-int snd_ak4117_create(snd_card_t *card, ak4117_read_t *read, ak4117_write_t *write,
- unsigned char pgm[5], void *private_data, ak4117_t **r_ak4117);
-void snd_ak4117_reg_write(ak4117_t *ak4117, unsigned char reg, unsigned char mask, unsigned char val);
-void snd_ak4117_reinit(ak4117_t *ak4117);
-int snd_ak4117_build(ak4117_t *ak4117, snd_pcm_substream_t *capture_substream);
-int snd_ak4117_external_rate(ak4117_t *ak4117);
-int snd_ak4117_check_rate_and_errors(ak4117_t *ak4117, unsigned int flags);
+int snd_ak4117_create(struct snd_card *card, ak4117_read_t *read, ak4117_write_t *write,
+ const unsigned char pgm[5], void *private_data, struct ak4117 **r_ak4117);
+void snd_ak4117_reg_write(struct ak4117 *ak4117, unsigned char reg, unsigned char mask, unsigned char val);
+void snd_ak4117_reinit(struct ak4117 *ak4117);
+int snd_ak4117_build(struct ak4117 *ak4117, struct snd_pcm_substream *capture_substream);
+int snd_ak4117_external_rate(struct ak4117 *ak4117);
+int snd_ak4117_check_rate_and_errors(struct ak4117 *ak4117, unsigned int flags);