1 What: /sys/bus/platform/devices/GGL0
2 /sys/bus/platform/devices/GOOG
3 Date: May 2022
4 KernelVersion: 5.19
5 Description:
6 Returns active EC firmware of
7
8 == ===========================
9 0 Read only (recovery) firmwa
10 1 Rewritable firmware.
11 == ===========================
12
13 What: /sys/bus/platform/devices/GGL0
14 /sys/bus/platform/devices/GOOG
15 Date: May 2022
16 KernelVersion: 5.19
17 Description:
18 Returns main firmware type for
19
20 == ===========================
21 0 Recovery.
22 1 Normal.
23 2 Developer.
24 3 Netboot (factory installati
25 == ===========================
26
27 What: /sys/bus/platform/devices/GGL0
28 /sys/bus/platform/devices/GOOG
29 Date: May 2022
30 KernelVersion: 5.19
31 Description:
32 Returns switch position for Ch
33 switches when the firmware is
34
35 ==== =========================
36 0 No changes.
37 2 Recovery button was press
38 4 Recovery button was press
39 32 Developer switch was enab
40 512 Firmware write protection
41 ==== =========================
42
43 What: /sys/bus/platform/devices/GGL0
44 /sys/bus/platform/devices/GOOG
45 Date: May 2022
46 KernelVersion: 5.19
47 Description:
48 Returns physical memory addres
49 processor firmware flashmap.
50
51 What: /sys/bus/platform/devices/GGL0
52 /sys/bus/platform/devices/GOOG
53 Date: May 2022
54 KernelVersion: 5.19
55 Description:
56 Returns firmware version for t
57 main processor firmware.
58
59 What: /sys/bus/platform/devices/GGL0
60 /sys/bus/platform/devices/GOOG
61 Date: May 2022
62 KernelVersion: 5.19
63 Description:
64 Returns firmware version for t
65 main processor firmware.
66
67 What: /sys/bus/platform/devices/GGL0
68 /sys/bus/platform/devices/GOOG
69 Date: May 2022
70 KernelVersion: 5.19
71 Description:
72 Returns type of the GPIO signa
73 GPIO assignments (integer).
74
75 =========== ==================
76 1 Recovery button.
77 2 Developer mode swi
78 3 Firmware write pro
79 256 to 511 Debug header GPIO
80 =========== ==================
81
82 What: /sys/bus/platform/devices/GGL0
83 /sys/bus/platform/devices/GOOG
84 Date: May 2022
85 KernelVersion: 5.19
86 Description:
87 Returns signal attributes of t
88
89 == =======================
90 0 Signal is active low.
91 1 Signal is active high.
92 == =======================
93
94 What: /sys/bus/platform/devices/GGL0
95 /sys/bus/platform/devices/GOOG
96 Date: May 2022
97 KernelVersion: 5.19
98 Description:
99 Returns the GPIO number on the
100 controller.
101
102 What: /sys/bus/platform/devices/GGL0
103 /sys/bus/platform/devices/GOOG
104 Date: May 2022
105 KernelVersion: 5.19
106 Description:
107 Returns name of the GPIO contr
108
109 What: /sys/bus/platform/devices/GGL0
110 /sys/bus/platform/devices/GOOG
111 Date: May 2022
112 KernelVersion: 5.19
113 Description:
114 Returns hardware ID for the Ch
115
116 What: /sys/bus/platform/devices/GGL0
117 /sys/bus/platform/devices/GOOG
118 Date: May 2022
119 KernelVersion: 5.19
120 Description:
121 Returns the SHA-1 or SHA-256 h
122 Management Engine extended reg
123 is exported via ACPI so the OS
124 Engine firmware has not change
125 present, or if the firmware wa
126
127 What: /sys/bus/platform/devices/GGL0
128 /sys/bus/platform/devices/GOOG
129 Date: May 2022
130 KernelVersion: 5.19
131 Description:
132 Returns offset in CMOS bank 0
133 storage block, counting from t
134 (that is, 'offset = 0' is the
135 clock data).
136
137 What: /sys/bus/platform/devices/GGL0
138 /sys/bus/platform/devices/GOOG
139 Date: May 2022
140 KernelVersion: 5.19
141 Description:
142 Return the size in bytes of th
143 storage block.
144
145 What: /sys/bus/platform/devices/GGL0
146 /sys/bus/platform/devices/GOOG
147 Date: May 2022
148 KernelVersion: 5.19
149 Description:
150 Returns the verified boot data
151 firmware verification step and
152 (hex dump).
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