drivers/mtd/ubi

UBI Unsorted Block Image flash volume management layer

UBI is a software layer that sits on top of raw NAND and NOR flash chips exposed through the kernel's MTD subsystem. It handles wear leveling, bad-block management, and lets a single flash device be carved into resizable logical volumes, which filesystems like UBIFS then sit on top of. It is widely used in embedded Linux devices such as routers, set-top boxes, and industrial gear.

not-a-driver conf=1.00 deploy=none replacement=none subsystem=mtd category=not-a-driver

100%

recommendation

This is not actually a hardware driver directory; it is a generic flash volume-management layer that works with whatever NAND or NOR chip the MTD subsystem exposes. It belongs to kernel infrastructure rather than the device-driver inventory and shouldn't be evaluated for hardware-driven removal.

repository signals

23 files

19,702 source lines

107 commits, 5y

+1,844 / −805 lines added / removed, 5y

46 authors, 5y

monthly commits · 2021-04-21 → 2026-04-21 · 107 total · active in 38/61 months

sources

No sources cited.

codex reasoning notes (technical)

Not a driver directory: contains the UBI flash volume-management layer for MTD devices, not hardware-bound device driver code.