diff --git a/config.h b/config.h
new file mode 100644
index 0000000..e8f6f8d
--- /dev/null
+++ b/config.h
@@ -0,0 +1,34 @@
+/**
+ * Copyright © 2016 IBM
+ * Copyright © 2024 9elements
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include <termios.h>
+
+struct config;
+
+const char *config_get_value(struct config *config, const char *name);
+struct config *config_init(const char *filename);
+const char *config_resolve_console_id(struct config *config,
+				      const char *id_arg);
+void config_fini(struct config *config);
+
+int config_parse_baud(speed_t *speed, const char *baud_string);
+uint32_t parse_baud_to_int(speed_t speed);
+speed_t parse_int_to_baud(uint32_t baud);
+int config_parse_bytesize(const char *size_str, size_t *size);