1 What: /sys/devices/socX
2 Date: January 2012
3 contact: Lee Jones <lee@kernel.org>
4 Description:
5 The /sys/devices/ directory co
6 System-on-Chip (SoC) device on
7 regarding each SoC can be obta
8 functionality is only availabl
9
10 The directory created for each
11 about devices which are common
12 It has been agreed that if an
13 devices would be better suited
14
15 What: /sys/devices/socX/machine
16 Date: January 2012
17 contact: Lee Jones <lee@kernel.org>
18 Description:
19 Read-only attribute common to
20 name (e.g. Ux500).
21
22 What: /sys/devices/socX/family
23 Date: January 2012
24 contact: Lee Jones <lee@kernel.org>
25 Description:
26 Read-only attribute common to
27 (e.g. DB8500).
28
29 On many of ARM based silicon w
30 this will contain the JEDEC JE
31 code. The format is "jep106:XX
32 YY is continuation code.
33
34 This manufacturer’s identifi
35 or more eight (8) bit fields,
36 data bits plus one (1) odd par
37 limiting the possible number o
38 the maximum number of identifi
39 scheme has been defined.
40
41 The specified mechanism is tha
42 represents the "continuation c
43 of an additional identity code
44 may be extended to multiple co
45 by the manufacturer's identity
46
47 For example, ARM has identity
48 which is code 0x3B on the fift
49 as JEP106 identity code of 0x3
50 0x4 to represent the four cont
51 identity code.
52
53 What: /sys/devices/socX/serial_numbe
54 Date: January 2019
55 contact: Bjorn Andersson <bjorn.andersso
56 Description:
57 Read-only attribute supported
58 serial number, if available.
59
60 What: /sys/devices/socX/soc_id
61 Date: January 2012
62 contact: Lee Jones <lee@kernel.org>
63 Description:
64 Read-only attribute supported
65 ST-Ericsson's chips this conta
66
67 On many of ARM based silicon w
68 this will contain the SOC ID a
69 to ensure there is no conflict
70 vendors. The format is "jep106
71 code, YY is continuation code
72
73 What: /sys/devices/socX/revision
74 Date: January 2012
75 contact: Lee Jones <lee@kernel.org>
76 Description:
77 Read-only attribute supported
78 manufacturing revision number.
79
80 What: /sys/devices/socX/process
81 Date: January 2012
82 contact: Lee Jones <lee@kernel.org>
83 Description:
84 Read-only attribute supported
85 the process by which the silic
86
87 What: /sys/bus/soc
88 Date: January 2012
89 contact: Lee Jones <lee@kernel.org>
90 Description:
91 The /sys/bus/soc/ directory co
92 expected under most buses. /sy
93 interest, as it contains a sym
94 the system. Each symlink point
95 /sys/devices/socX devices.
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