example for MSC (Mass Storage Class) support

examples/stm32/f4/stm32f4-discovery/usb_msc/ramdisk.h

@@ -0,0 +1,31 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2013 Andrzej Surowiec <emeryth@gmail.com>
+ * Copyright (C) 2013 Pavol Rusnak <stick@gk2.sk>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __RAMDISK_H
+#define __RAMDISK_H
+
+#include <stdint.h>
+
+extern int ramdisk_init(void);
+extern int ramdisk_read(uint32_t lba, uint8_t *copy_to);
+extern int ramdisk_write(uint32_t lba, const uint8_t *copy_from);
+extern int ramdisk_blocks(void);
+
+#endif