1 What: /sys/devices/platform/docg3/f[ 1 What: /sys/devices/platform/docg3/f[0-3]_dps[01]_is_keylocked
2 Date: November 2011 2 Date: November 2011
3 KernelVersion: 3.3 3 KernelVersion: 3.3
4 Contact: Robert Jarzmik <robert.jarzmik@ 4 Contact: Robert Jarzmik <robert.jarzmik@free.fr>
5 Description: 5 Description:
6 Show whether the floor (0 to 4 6 Show whether the floor (0 to 4), protection area (0 or 1) is
7 keylocked. Each docg3 chip (or 7 keylocked. Each docg3 chip (or floor) has 2 protection areas,
8 which can cover any part of it 8 which can cover any part of it, block aligned, called DPS.
9 The protection has information 9 The protection has information embedded whether it blocks reads,
10 writes or both. 10 writes or both.
11 The result is: 11 The result is:
12 !! 12 0 -> the DPS is not keylocked
13 - 0 -> the DPS is not keylocke !! 13 1 -> the DPS is keylocked
14 - 1 -> the DPS is keylocked <<
15 <<
16 Users: None identified so far. 14 Users: None identified so far.
17 15
18 What: /sys/devices/platform/docg3/f[ 16 What: /sys/devices/platform/docg3/f[0-3]_dps[01]_protection_key
19 Date: November 2011 17 Date: November 2011
20 KernelVersion: 3.3 18 KernelVersion: 3.3
21 Contact: Robert Jarzmik <robert.jarzmik@ 19 Contact: Robert Jarzmik <robert.jarzmik@free.fr>
22 Description: 20 Description:
23 Enter the protection key for t 21 Enter the protection key for the floor (0 to 4), protection area
24 (0 or 1). Each docg3 chip (or 22 (0 or 1). Each docg3 chip (or floor) has 2 protection areas,
25 which can cover any part of it 23 which can cover any part of it, block aligned, called DPS.
26 The protection has information 24 The protection has information embedded whether it blocks reads,
27 writes or both. 25 writes or both.
28 The protection key is a string 26 The protection key is a string of 8 bytes (value 0-255).
29 Entering the correct value tog 27 Entering the correct value toggle the lock, and can be observed
30 through f[0-3]_dps[01]_is_keyl 28 through f[0-3]_dps[01]_is_keylocked.
31 Possible values are: 29 Possible values are:
32 <<
33 - 8 bytes 30 - 8 bytes
34 <<
35 Typical values are: 31 Typical values are:
36 <<
37 - "00000000" 32 - "00000000"
38 - "12345678" 33 - "12345678"
39 <<
40 Users: None identified so far. 34 Users: None identified so far.
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