diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2011-06-07 11:28:02 -0400 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2011-06-08 14:58:14 +0300 |
| commit | d1bc539a3a77bd38f1776d5026277d66b1661c8a (patch) | |
| tree | 85777927b32b48749f33e8c627475ffe9e4576b8 /include | |
| parent | 811e2e742e64cdc4bfb9519c0d0db53ac75aa4ce (diff) | |
libmtd: add helper funcs for getting regioninfo and locked info
This extends the libmtd with the helper functions:
mtd_regioninfo: interface to MEMGETREGIONINFO
mtd_islocked: interface to MEMISLOCKED
Users of these functions will follow shortly ...
Artem: do not print error message in mtd_islocked()
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/libmtd.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/libmtd.h b/include/libmtd.h index e30c8a6..7275246 100644 --- a/include/libmtd.h +++ b/include/libmtd.h @@ -35,6 +35,9 @@ extern "C" { /* MTD library descriptor */ typedef void * libmtd_t; +/* Forward decls */ +struct region_info_user; + /** * @mtd_dev_cnt: count of MTD devices in system * @lowest_mtd_num: lowest MTD device number in system @@ -174,6 +177,31 @@ int mtd_unlock(const struct mtd_dev_info *mtd, int fd, int eb); int mtd_erase(libmtd_t desc, const struct mtd_dev_info *mtd, int fd, int eb); /** + * mtd_regioninfo - get information about an erase region. + * @fd: MTD device node file descriptor + * @regidx: index of region to look up + * @reginfo: the region information is returned here + * + * This function gets information about an erase region defined by the + * @regidx index and saves this information in the @reginfo object. + * Returns %0 in case of success and %-1 in case of failure. If the + * @regidx is not valid or unavailable, errno is set to @ENODEV. + */ +int mtd_regioninfo(int fd, int regidx, struct region_info_user *reginfo); + +/** + * mtd_islocked - see if the specified eraseblock is locked. + * @mtd: MTD device description object + * @fd: MTD device node file descriptor + * @eb: eraseblock to check + * + * This function checks to see if eraseblock @eb of MTD device described + * by @fd is locked. Returns %0 if it is unlocked, %1 if it is locked, and + * %-1 in case of failure. + */ +int mtd_islocked(const struct mtd_dev_info *mtd, int fd, int eb); + +/** * mtd_torture - torture an eraseblock. * @desc: MTD library descriptor * @mtd: MTD device description object |