snd_pcm_sframes_t snd_pcm_lib_readv(struct snd_pcm_substream *substream,
                                    void __user **bufs, snd_pcm_uframes_t frames);
 
+extern const struct snd_pcm_hw_constraint_list snd_pcm_known_rates;
+
 int snd_pcm_limit_hw_rates(struct snd_pcm_runtime *runtime);
 
 static inline void snd_pcm_set_runtime_buffer(struct snd_pcm_substream *substream,
 
  */
 int snd_pcm_limit_hw_rates(struct snd_pcm_runtime *runtime)
 {
-       static unsigned rates[] = {
-               /* ATTENTION: these values depend on the definition in pcm.h! */
-               5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
-               64000, 88200, 96000, 176400, 192000
-       };
        int i;
-       for (i = 0; i < (int)ARRAY_SIZE(rates); i++) {
+       for (i = 0; i < (int)snd_pcm_known_rates.count; i++) {
                if (runtime->hw.rates & (1 << i)) {
-                       runtime->hw.rate_min = rates[i];
+                       runtime->hw.rate_min = snd_pcm_known_rates.list[i];
                        break;
                }
        }
-       for (i = (int)ARRAY_SIZE(rates) - 1; i >= 0; i--) {
+       for (i = (int)snd_pcm_known_rates.count - 1; i >= 0; i--) {
                if (runtime->hw.rates & (1 << i)) {
-                       runtime->hw.rate_max = rates[i];
+                       runtime->hw.rate_max = snd_pcm_known_rates.list[i];
                        break;
                }
        }
 
 static unsigned int rates[] = { 5512, 8000, 11025, 16000, 22050, 32000, 44100,
                                  48000, 64000, 88200, 96000, 176400, 192000 };
 
+const struct snd_pcm_hw_constraint_list snd_pcm_known_rates = {
+       .count = ARRAY_SIZE(rates),
+       .list = rates,
+};
+
 static int snd_pcm_hw_rule_rate(struct snd_pcm_hw_params *params,
                                struct snd_pcm_hw_rule *rule)
 {
        struct snd_pcm_hardware *hw = rule->private;
        return snd_interval_list(hw_param_interval(params, rule->var),
-                                ARRAY_SIZE(rates), rates, hw->rates);
+                                snd_pcm_known_rates.count,
+                                snd_pcm_known_rates.list, hw->rates);
 }              
 
 static int snd_pcm_hw_rule_buffer_bytes_max(struct snd_pcm_hw_params *params,