* Min: 1 sample per 0.01us -> sample time is 0.084s, samplerate 100MHz
* Max: 1 sample per 2.55us -> sample time is 21.391s, samplerate 392.15kHz
*/
-static struct sr_samplerates samplerates = {
+static const struct sr_samplerates samplerates = {
.low = 0,
.high = 0,
.step = 0,