path: root/include
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authorRichard Cochran <richardcochran@gmail.com>2010-06-14 18:10:33 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-08-02 09:03:41 +0100
commit9938424f0c4d208883cbf32083ec2bfcc220f85b (patch)
treee4f7581c7543673fe63c98f9804e934a77aeb7ef /include
parent1df620637fc3b252b69c92ced486b5b6b643dd1a (diff)
mtd: add an ioctl to query the lock status of a flash sector
This patchs adds a way for user space programs to find out whether a flash sector is locked. An optional driver method in the mtd_info struct provides the information. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'include')
2 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 5326435a757..43b7d72c611 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -216,6 +216,7 @@ struct mtd_info {
/* Chip-supported device locking */
int (*lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
int (*unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
+ int (*is_locked) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
/* Power Management functions */
int (*suspend) (struct mtd_info *mtd);
diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
index be51ae2bd0f..e12872e3c69 100644
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
@@ -110,6 +110,7 @@ struct otp_info {
#define MEMERASE64 _IOW('M', 20, struct erase_info_user64)
#define MEMWRITEOOB64 _IOWR('M', 21, struct mtd_oob_buf64)
#define MEMREADOOB64 _IOWR('M', 22, struct mtd_oob_buf64)
+#define MEMISLOCKED _IOR('M', 23, struct erase_info_user)
* Obsolete legacy interface. Keep it in order not to break userspace