Add missing files

include/ext_sysfs.h

@@ -0,0 +1,25 @@
+/**
+ * Author......: See docs/credits.txt
+ * License.....: MIT
+ */
+
+#ifndef _EXT_SYSFS_H
+#define _EXT_SYSFS_H
+
+static const char SYS_BUS_PCI_DEVICES[] = "/sys/bus/pci/devices";
+
+typedef int HM_ADAPTER_SYSFS;
+
+typedef void *SYSFS_LIB;
+
+typedef struct hm_sysfs_lib
+{
+  // currently not using libudev, because it can only read values, not set them, so using /sys instead
+
+  SYSFS_LIB lib;
+
+} hm_sysfs_lib_t;
+
+typedef hm_sysfs_lib_t SYSFS_PTR;
+
+#endif // _EXT_SYSFS_H

src/ext_sysfs.c

@@ -0,0 +1,7 @@
+/**
+ * Author......: See docs/credits.txt
+ * License.....: MIT
+ */
+
+#include "common.h"
+#include "ext_sysfs.h"