Mike Lockwood 6e5b93ee55 fatfs: add FAT_IOCTL_GET_VOLUME_ID ... This patch, originally from Android kernel, adds vfat ioctl command FAT_IOCTL_GET_VOLUME_ID, with this command we can get the vfat volume ID using following code: ioctl(fd, FAT_IOCTL_GET_VOLUME_ID, &volume_ID) This patch is a modified version of the patch by Mike Lockwood, with changes from Dmitry Pervushin, who noticed the original patch makes some volume IDs abiguous with error returns: for example, if volume id is 0xFFFFFDAD, that matches -ENOIOCTLCMD, we get "FFFFFFFF" from the user space. So add a parameter to ioctl to get the correct volume ID. Android uses vfat volume ID to identify different sd card, when a new sd card is inserted to device, android can scan the media on it and pop up new contents. Signed-off-by: Bintian Wang <bintian.wang@linaro.org> Cc: dmitry pervushin <dpervushin@gmail.com> Cc: Mike Lockwood <lockwood@android.com> Cc: Colin Cross <ccross@android.com> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: John Stultz <john.stultz@linaro.org> Cc: Sean McNeil <sean@mcneil.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2013-07-09 10:33:25 -07:00
..
cache.c
dir.c
fat.h	fatfs: add FAT_IOCTL_GET_VOLUME_ID	2013-07-09 10:33:25 -07:00
fatent.c
file.c	fatfs: add FAT_IOCTL_GET_VOLUME_ID	2013-07-09 10:33:25 -07:00
inode.c	fatfs: add FAT_IOCTL_GET_VOLUME_ID	2013-07-09 10:33:25 -07:00
Kconfig
Makefile
misc.c	fs/fat: use fat_msg() to replace printk() in __fat_fs_error()	2013-07-03 16:08:01 -07:00
namei_msdos.c
namei_vfat.c
nfs.c