#define NAME "harmony"
 #define PFX  NAME ": "
 
-static unsigned int snd_harmony_rates[] = {
+static const unsigned int snd_harmony_rates[] = {
        5512, 6615, 8000, 9600,
        11025, 16000, 18900, 22050,
        27428, 32000, 33075, 37800,
        44100, 48000
 };
 
-static unsigned int rate_bits[14] = {
+static const unsigned int rate_bits[14] = {
        HARMONY_SR_5KHZ, HARMONY_SR_6KHZ, HARMONY_SR_8KHZ,
        HARMONY_SR_9KHZ, HARMONY_SR_11KHZ, HARMONY_SR_16KHZ,
        HARMONY_SR_18KHZ, HARMONY_SR_22KHZ, HARMONY_SR_27KHZ,
        HARMONY_SR_44KHZ, HARMONY_SR_48KHZ
 };
 
-static struct snd_pcm_hw_constraint_list hw_constraint_rates = {
+static const struct snd_pcm_hw_constraint_list hw_constraint_rates = {
        .count = ARRAY_SIZE(snd_harmony_rates),
        .list = snd_harmony_rates,
        .mask = 0,