1 What: /sys/class/ubi/
2 Date: July 2006
3 KernelVersion: 2.6.22
4 Contact: Artem Bityutskiy <dedekind@infr
5 Description:
6 The ubi/ class sub-directory b
7 provides general UBI informati
8 and per-UBI volume information
9
10 What: /sys/class/ubi/version
11 Date: July 2006
12 KernelVersion: 2.6.22
13 Contact: Artem Bityutskiy <dedekind@infr
14 Description:
15 This file contains version of
16 format. Currently it is 1, and
17 However, if in the future UBI
18 which cannot be done in a comp
19 version will be added. So this
20 future backward-compatible (bu
21 improvements.
22
23 What: /sys/class/ubiX/
24 Date: July 2006
25 KernelVersion: 2.6.22
26 Contact: Artem Bityutskiy <dedekind@infr
27 Description:
28 The /sys/class/ubi0, /sys/clas
29 UBI devices (UBI device 0, 1,
30 device information and per UBI
31 device may have many UBI volum
32
33 What: /sys/class/ubi/ubiX/avail_eras
34 Date: July 2006
35 KernelVersion: 2.6.22
36 Contact: Artem Bityutskiy <dedekind@infr
37 Description:
38 Amount of available logical er
39 create a new UBI volume which
40 eraseblocks.
41
42 What: /sys/class/ubi/ubiX/bad_peb_co
43 Date: July 2006
44 KernelVersion: 2.6.22
45 Contact: Artem Bityutskiy <dedekind@infr
46 Description:
47 Count of bad physical eraseblo
48
49 What: /sys/class/ubi/ubiX/bgt_enable
50 Date: July 2006
51 KernelVersion: 2.6.22
52 Contact: Artem Bityutskiy <dedekind@infr
53 Description:
54 Contains ASCII "0\n" if the UB
55 and ASCII "1\n" if it is enabl
56
57 What: /sys/class/ubi/ubiX/dev
58 Date: July 2006
59 KernelVersion: 2.6.22
60 Contact: Artem Bityutskiy <dedekind@infr
61 Description:
62 Major and minor numbers of the
63 to this UBI device (in <major>
64
65 What: /sys/class/ubi/ubiX/eraseblock
66 Date: July 2006
67 KernelVersion: 2.6.22
68 Contact: Artem Bityutskiy <dedekind@infr
69 Description:
70 Maximum logical eraseblock siz
71 volumes may have smaller logic
72 alignment.
73
74 What: /sys/class/ubi/ubiX/max_ec
75 Date: July 2006
76 KernelVersion: 2.6.22
77 Contact: Artem Bityutskiy <dedekind@infr
78 Description:
79 Maximum physical eraseblock er
80
81 What: /sys/class/ubi/ubiX/max_vol_co
82 Date: July 2006
83 KernelVersion: 2.6.22
84 Contact: Artem Bityutskiy <dedekind@infr
85 Description:
86 Maximum number of volumes whic
87
88 What: /sys/class/ubi/ubiX/min_io_siz
89 Date: July 2006
90 KernelVersion: 2.6.22
91 Contact: Artem Bityutskiy <dedekind@infr
92 Description:
93 Minimum input/output unit size
94 in fractions of the contained
95
96 What: /sys/class/ubi/ubiX/mtd_num
97 Date: January 2008
98 KernelVersion: 2.6.25
99 Contact: Artem Bityutskiy <dedekind@infr
100 Description:
101 Number of the underlying MTD d
102
103 What: /sys/class/ubi/ubiX/reserved_f
104 Date: July 2006
105 KernelVersion: 2.6.22
106 Contact: Artem Bityutskiy <dedekind@infr
107 Description:
108 Number of physical eraseblocks
109
110 What: /sys/class/ubi/ubiX/ro_mode
111 Date: April 2016
112 KernelVersion: 4.7
113 Contact: linux-mtd@lists.infradead.org
114 Description:
115 Contains ASCII "1\n" if the re
116 device, and "0\n" if it is cle
117 as read-only when they detect
118
119 What: /sys/class/ubi/ubiX/total_eras
120 Date: July 2006
121 KernelVersion: 2.6.22
122 Contact: Artem Bityutskiy <dedekind@infr
123 Description:
124 Total number of good (not mark
125 the underlying MTD device.
126
127 What: /sys/class/ubi/ubiX/volumes_co
128 Date: July 2006
129 KernelVersion: 2.6.22
130 Contact: Artem Bityutskiy <dedekind@infr
131 Description:
132 Count of volumes on this UBI d
133
134 What: /sys/class/ubi/ubiX/ubiX_Y/
135 Date: July 2006
136 KernelVersion: 2.6.22
137 Contact: Artem Bityutskiy <dedekind@infr
138 Description:
139 The /sys/class/ubi/ubiX/ubiX_0
140 etc directories describe UBI v
141 0, 1, etc).
142
143 What: /sys/class/ubi/ubiX/ubiX_Y/ali
144 Date: July 2006
145 KernelVersion: 2.6.22
146 Contact: Artem Bityutskiy <dedekind@infr
147 Description:
148 Volume alignment - the value t
149 this volume has to be aligned
150 logical eraseblock size is mul
151 volume logical eraseblock size
152 size aligned to the alignment
153
154 What: /sys/class/ubi/ubiX/ubiX_Y/cor
155 Date: July 2006
156 KernelVersion: 2.6.22
157 Contact: Artem Bityutskiy <dedekind@infr
158 Description:
159 Contains ASCII "0\n" if the UB
160 if it is corrupted (e.g., due
161
162 What: /sys/class/ubi/ubiX/ubiX_Y/dat
163 Date: July 2006
164 KernelVersion: 2.6.22
165 Contact: Artem Bityutskiy <dedekind@infr
166 Description:
167 The amount of data this volume
168 only for static volumes, and f
169 to the total volume size in by
170
171 What: /sys/class/ubi/ubiX/ubiX_Y/dev
172 Date: July 2006
173 KernelVersion: 2.6.22
174 Contact: Artem Bityutskiy <dedekind@infr
175 Description:
176 Major and minor numbers of the
177 to this UBI volume (in <major>
178
179 What: /sys/class/ubi/ubiX/ubiX_Y/nam
180 Date: July 2006
181 KernelVersion: 2.6.22
182 Contact: Artem Bityutskiy <dedekind@infr
183 Description:
184 Volume name.
185
186 What: /sys/class/ubi/ubiX/ubiX_Y/res
187 Date: July 2006
188 KernelVersion: 2.6.22
189 Contact: Artem Bityutskiy <dedekind@infr
190 Description:
191 Count of physical eraseblock r
192 Equivalent to the volume size
193
194 What: /sys/class/ubi/ubiX/ubiX_Y/typ
195 Date: July 2006
196 KernelVersion: 2.6.22
197 Contact: Artem Bityutskiy <dedekind@infr
198 Description:
199 Volume type. Contains ASCII "d
200 "static\n" for static volumes.
201
202 What: /sys/class/ubi/ubiX/ubiX_Y/upd
203 Date: July 2006
204 KernelVersion: 2.6.22
205 Contact: Artem Bityutskiy <dedekind@infr
206 Description:
207 Contains ASCII "0\n" if the up
208 volume, and "1\n" if it is set
209 volume update starts, and clea
210 of the update marker indicates
211 at the moment of the update wa
212 checked using the "corrupted"
213
214 What: /sys/class/ubi/ubiX/ubiX_Y/usa
215 Date: July 2006
216 KernelVersion: 2.6.22
217 Contact: Artem Bityutskiy <dedekind@infr
218 Description:
219 Logical eraseblock size of thi
220 eraseblock size of the device
221 value.
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