Add function for getting member drive sector size

This patch introduces the function for getting sector size of
given device (fd).

Signed-off-by: Pawel Baldysiak <pawel.baldysiak@intel.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/mdadm.h b/mdadm.h
index 41a4494..240ab7f 100755
--- a/mdadm.h
+++ b/mdadm.h
@@ -1112,6 +1112,7 @@ static inline struct supertype *guess_super(int fd) {
 }
 extern struct supertype *dup_super(struct supertype *st);
 extern int get_dev_size(int fd, char *dname, unsigned long long *sizep);
+extern int get_dev_sector_size(int fd, char *dname, unsigned int *sectsizep);
 extern int must_be_container(int fd);
 extern int dev_size_from_id(dev_t id, unsigned long long *size);
 void wait_for(char *dev, int fd);