--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pcm/record_ctrl.c	Sun Jun 23 18:53:01 2024 +0000
@@ -0,0 +1,50 @@
+/*
+ * Here we implement stdin commands that control recording of E1 timeslot
+ * read stream.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <osmocom/core/select.h>
+
+#include "globals.h"
+
+void cmd_record_start(int argc, char **argv)
+{
+	if (argc != 2) {
+		printf("error: record command needs 1 argument\n");
+		return;
+	}
+	if (record_file) {
+		printf("error: recording already in progress\n");
+		return;
+	}
+	record_file = fopen(argv[1], "w");
+	if (!record_file)
+		perror(argv[1]);
+}
+
+void cmd_record_stop(int argc, char **argv)
+{
+	if (!record_file) {
+		printf("error: no recording in progress\n");
+		return;
+	}
+	fclose(record_file);
+	record_file = NULL;
+}
+
+void cmd_print_rx(int argc, char **argv)
+{
+	int i, j, off;
+
+	off = 0;
+	for (i = 0; i < 10; i++) {
+		for (j = 0; j < 16; j++)
+			printf(" %02X", readbuf[off++]);
+		putchar('\n');
+	}
+}