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/Documentation/ABI/stable/
Dsysfs-class-ubi1 What: /sys/class/ubi/
6 The ubi/ class sub-directory belongs to the UBI subsystem and
7 provides general UBI information, per-UBI device information
8 and per-UBI volume information.
10 What: /sys/class/ubi/version
15 This file contains version of the latest supported UBI on-media
17 However, if in the future UBI needs on-flash format changes
29 UBI devices (UBI device 0, 1, etc). They contain general UBI
30 device information and per UBI volume information (each UBI
31 device may have many UBI volumes)
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/Documentation/filesystems/
Dubifs.rst4 UBI File System
10 UBIFS file-system stands for UBI File System. UBI stands for "Unsorted
41 UBIFS works on top of UBI. UBI is a separate software layer which may be
42 found in drivers/mtd/ubi. UBI is basically a volume management and
43 wear-leveling layer. It provides so called UBI volumes which is a higher
44 level abstraction than a MTD device. The programming model of UBI devices
46 they have read/write/erase operations, but UBI devices are devoid of
53 * JFFS2 works on top of MTD devices, UBIFS depends on UBI and works on
54 top of UBI volumes.
74 UBI, which scales linearly. So overall UBI/UBIFS stack scales linearly.
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Dubifs-authentication.rst43 MTD, UBI & UBIFS
48 work on top of MTD is UBI (Unsorted Block Images). It provides volume management
51 handling. UBI offers logical erase blocks (LEBs) to the layers on top of it
54 UBIFS is a filesystem for raw flash which operates on top of UBI. Thus, wear
55 leveling and some flash specifics are left to UBI, while UBIFS focuses on
61 | | * UBIFS * | UBI-BLOCK | | ... |
64 | | | UBI | | MTD-BLOCK | | ... |
87 UBI LEB.
113 a special node called *master node* into UBI LEB 1 which always points to the
232 wear-leveling operations of UBI which copies contents from one physical
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Dfscrypt.rst1474 emulated UBI volumes::
/Documentation/devicetree/bindings/mtd/partitions/
Dlinux,ubi.yaml4 $id: http://devicetree.org/schemas/mtd/partitions/linux,ubi.yaml#
10 UBI ("Unsorted Block Images") is a volume management system for raw
23 const: linux,ubi
27 description: UBI Volumes
30 "^ubi-volume-.*$":
31 $ref: /schemas/mtd/partitions/ubi-volume.yaml#
55 label = "ubi";
56 compatible = "linux,ubi";
59 ubi-volume-caldata {
Dubi-volume.yaml4 $id: http://devicetree.org/schemas/mtd/partitions/ubi-volume.yaml#
7 title: UBI volume
10 This binding describes a single UBI volume. Volumes can be matches either
20 Match UBI volume ID
25 Match UBI volume ID
/Documentation/devicetree/bindings/nvmem/layouts/
Du-boot,env.yaml19 2. UBI volume
116 label = "ubi";
117 compatible = "linux,ubi";
120 ubi-volume-u-boot-env {
/Documentation/devicetree/bindings/mtd/
Dnand-macronix.txt12 with hardware ECC and not enabled at UBI level, then enabling the
/Documentation/devicetree/bindings/clock/
Dqcom,ipq9574-gcc.yaml29 - description: Bias PLL ubi clock source
/Documentation/userspace-api/ioctl/
Dioctl-number.rst183 'O' 00-06 mtd/ubi-user.h UBI
278 'o' 00-03 mtd/ubi-user.h conflict! (OCFS2 and UBI overl…
279 'o' 40-41 mtd/ubi-user.h UBI
/Documentation/ABI/testing/
Dsysfs-class-mtd107 absent, ram, rom, nor, nand, mlc-nand, dataflash, ubi, unknown
146 an error, 0 is returned. Higher layers (e.g., UBI) use this
/Documentation/admin-guide/
Dkernel-parameters.txt5980 system, or "mtd" and "ubi" for mounting from raw flash.