diff options
| author | Artem Bityutskiy <dedekind1@gmail.com> | 2010-07-17 20:08:33 +0300 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2010-07-26 08:37:00 +0300 |
| commit | f1e870c3e9a1a80be7a1d886d61ccac0f8e97e10 (patch) | |
| tree | 6860d01fa73cba0bb5de6fcf4a19b7a2ac007e55 /include | |
| parent | 05f56bf49ee0de8979c29c11f61a01e30e964444 (diff) | |
libmtd: support MEMERASE64
This patch is base on Kevin Cernekee's patch posted to the MTD mailing
list. It adds MEMERASE64 support to the 'mtd_erase()' call. Now it
first tries to use MEMERASE64, and if that is not supported, falls
back to the old MEMERASE ioctl.
This patch also introduces an 'offs64_ioctl' flag to the libmtd
descriptor. However, we cannot initialize it in 'libmtd_open()',
because we need an MTD device node, which we do not have in
'libmtd_open()'. Thus, we firs mark this flag as "uninitialized",
and at the first invocation of 'mtd_erase()' we initialize it.
This also means that we have to pass the limbtd descriptor to
'mtd_erase()', to save the flag value. This, in turn, requires
tweaking 'mtd_erase()' users.
This is not very nice, but good enough so far.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/libmtd.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/libmtd.h b/include/libmtd.h index 0aea966..2bf9859 100644 --- a/include/libmtd.h +++ b/include/libmtd.h @@ -139,6 +139,7 @@ int mtd_get_dev_info1(libmtd_t desc, int mtd_num, struct mtd_dev_info *mtd); /** * mtd_erase - erase an eraseblock. + * @desc: MTD library descriptor * @mtd: MTD device description object * @fd: MTD device node file descriptor * @eb: eraseblock to erase @@ -146,10 +147,11 @@ int mtd_get_dev_info1(libmtd_t desc, int mtd_num, struct mtd_dev_info *mtd); * This function erases eraseblock @eb of MTD device described by @fd. Returns * %0 in case of success and %-1 in case of failure. */ -int mtd_erase(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_torture - torture an eraseblock. + * @desc: MTD library descriptor * @mtd: MTD device description object * @fd: MTD device node file descriptor * @eb: eraseblock to torture @@ -157,7 +159,7 @@ int mtd_erase(const struct mtd_dev_info *mtd, int fd, int eb); * This function tortures eraseblock @eb. Returns %0 in case of success and %-1 * in case of failure. */ -int mtd_torture(const struct mtd_dev_info *mtd, int fd, int eb); +int mtd_torture(libmtd_t desc, const struct mtd_dev_info *mtd, int fd, int eb); /** * mtd_is_bad - check if eraseblock is bad. |