use libblkid to get filesystem type
we can now use libblkid to detect exfat
diff --git a/libblkid/nvidia_raid.c b/libblkid/nvidia_raid.c
new file mode 100644
index 0000000..dd86cdc
--- /dev/null
+++ b/libblkid/nvidia_raid.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
+ * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ * Inspired by libvolume_id by
+ * Kay Sievers <kay.sievers@vrfy.org>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdint.h>
+
+#include "superblocks.h"
+
+struct nv_metadata {
+ uint8_t vendor[8];
+ uint32_t size;
+ uint32_t chksum;
+ uint16_t version;
+} __attribute__((packed));
+
+#define NVIDIA_SIGNATURE "NVIDIA"
+
+static int probe_nvraid(blkid_probe pr,
+ const struct blkid_idmag *mag __attribute__((__unused__)))
+{
+ uint64_t off;
+ struct nv_metadata *nv;
+
+ if (pr->size < 0x10000)
+ return -1;
+ if (!S_ISREG(pr->mode) && !blkid_probe_is_wholedisk(pr))
+ return -1;
+
+ off = ((pr->size / 0x200) - 2) * 0x200;
+ nv = (struct nv_metadata *)
+ blkid_probe_get_buffer(pr,
+ off,
+ sizeof(struct nv_metadata));
+ if (!nv)
+ return -1;
+
+ if (memcmp(nv->vendor, NVIDIA_SIGNATURE, sizeof(NVIDIA_SIGNATURE)-1) != 0)
+ return -1;
+ if (blkid_probe_sprintf_version(pr, "%u", le16_to_cpu(nv->version)) != 0)
+ return -1;
+ if (blkid_probe_set_magic(pr, off, sizeof(nv->vendor),
+ (unsigned char *) nv->vendor))
+ return -1;
+ return 0;
+}
+
+const struct blkid_idinfo nvraid_idinfo = {
+ .name = "nvidia_raid_member",
+ .usage = BLKID_USAGE_RAID,
+ .probefunc = probe_nvraid,
+ .magics = BLKID_NONE_MAGIC
+};
+
+