We need this during mount() to check if the cdev is an mmc/mci main|user
hardware partition device. Later on we add the feature to pass
"root=/dev/mmcblkXpN" as kernel command line.
Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
---
v3:
- no changes
v2:
- dropped the !!
- renamed the flag due to v1 comments
- renamed the function to
include/driver.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/driver.h b/include/driver.h
index 0d43b36148..d84fe35d50 100644
--- a/include/driver.h
+++ b/include/driver.h
@@ -496,6 +496,7 @@ int cdev_erase(struct cdev *cdev, loff_t count, loff_t offset);
#define DEVFS_PARTITION_READONLY (1U << 1)
#define DEVFS_IS_CHARACTER_DEV (1U << 3)
#define DEVFS_PARTITION_FROM_TABLE (1U << 4)
+#define DEVFS_IS_MCI_MAIN_PART_DEV (1U << 5)
struct cdev *devfs_add_partition(const char *devname, loff_t offset,
loff_t size, unsigned int flags, const char *name);
@@ -509,6 +510,11 @@ static inline void cdev_create_default_automount(struct cdev *cdev)
}
#endif
+static inline bool cdev_is_mci_main_part_dev(struct cdev *cdev)
+{
+ return cdev->flags & DEVFS_IS_MCI_MAIN_PART_DEV;
+}
+
#define DEVFS_PARTITION_APPEND 0
/**
--
2.29.2
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