* create pcm instance
*/
-static struct snd_pcm_ops snd_m3_playback_ops = {
+static const struct snd_pcm_ops snd_m3_playback_ops = {
.open = snd_m3_playback_open,
.close = snd_m3_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.pointer = snd_m3_pcm_pointer,
};
-static struct snd_pcm_ops snd_m3_capture_ops = {
+static const struct snd_pcm_ops snd_m3_capture_ops = {
.open = snd_m3_capture_open,
.close = snd_m3_capture_close,
.ioctl = snd_pcm_lib_ioctl,