rtl_tcp: add handlers for sample rate and gain mode commands

src/rtl_tcp.c

@@ -279,6 +279,14 @@ static void *command_worker(void *arg)
 			printf("set freq %d\n", cmd.param);
 			rtlsdr_set_center_freq(dev, cmd.param);
 			break;
+        case 0x02:
+			printf("set sample rate %d\n", cmd.param);
+			rtlsdr_set_sample_rate(dev, cmd.param);
+			break;
+        case 0x03:
+			printf("set gain mode %d\n", cmd.param);
+			rtlsdr_set_tuner_gain_mode(dev, cmd.param);
+			break;
 		case 0x04:
 			printf("set gain %d\n", cmd.param);
 			rtlsdr_set_tuner_gain(dev, cmd.param);