1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h
index 34066e65fde..f38d4f0a5ae 100644
--- a/include/linux/msdos_fs.h
+++ b/include/linux/msdos_fs.h
@@ -101,6 +101,7 @@ struct __fat_dirent {
 /* <linux/videotext.h> has used 0x72 ('r') in collision, so skip a few */
 #define FAT_IOCTL_GET_ATTRIBUTES        _IOR('r', 0x10, __u32)
 #define FAT_IOCTL_SET_ATTRIBUTES        _IOW('r', 0x11, __u32)
+#define VFAT_IOCTL_GET_VOLUME_ID        _IOR('r', 0x12, __u32)
 
 struct fat_boot_sector {
         __u8    ignored[3];     /* Boot strap short or near jump */
@@ -138,6 +139,17 @@ struct fat_boot_fsinfo {
         __le32   reserved2[4];
 };
 
+struct fat_boot_bsx {
+        __u8     drive;             /* drive number */
+        __u8     reserved1;
+        __u8     signature;         /* extended boot signature */
+        __u8     vol_id[4];     /* volume ID */
+        __u8     vol_label[11]; /* volume label */
+        __u8     type[8];       /* file system type */
+};
+#define FAT16_BSX_OFFSET        36 /* offset of fat_boot_bsx in FAT12 and FAT16 */
+#define FAT32_BSX_OFFSET        64 /* offset of fat_boot_bsx in FAT32 */
+
 struct msdos_dir_entry {
         __u8    name[MSDOS_NAME];/* name and extension */
         __u8    attr;           /* attribute bits */