Added new files device.c and device.h

src/device.c

@@ -0,0 +1,39 @@
+
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "device.h"
+
+static const char * devices[] = {
+	[DEVICE_SU_18] = "SU-18",
+	[DEVICE_RX_34] = "RX-34",
+	[DEVICE_RX_44] = "RX-44",
+	[DEVICE_RX_48] = "RX-48",
+	[DEVICE_RX_51] = "RX-51",
+};
+
+enum device device_from_string(const char * device) {
+
+	size_t i;
+
+	if ( ! device )
+		return DEVICE_ANY;
+
+	for ( i = 0; i < sizeof(devices)/sizeof(devices[0]); ++i )
+		if ( devices[i] && strcmp(devices[i], device) == 0 )
+			return i;
+
+	return DEVICE_UNKNOWN;
+
+}
+
+const char * device_to_string(enum device device) {
+
+	if ( device > sizeof(devices) )
+		return NULL;
+
+	return devices[device];
+
+}