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Robert Jarzmik1f9327f2011-11-29 23:16:35 +01001What: /sys/devices/platform/docg3/f[0-3]_dps[01]_is_keylocked
2Date: November 2011
3KernelVersion: 3.3
4Contact: Robert Jarzmik <robert.jarzmik@free.fr>
5Description:
6 Show whether the floor (0 to 4), protection area (0 or 1) is
7 keylocked. Each docg3 chip (or floor) has 2 protection areas,
8 which can cover any part of it, block aligned, called DPS.
9 The protection has information embedded whether it blocks reads,
10 writes or both.
11 The result is:
Mauro Carvalho Chehab34433332020-10-30 08:40:39 +010012
13 - 0 -> the DPS is not keylocked
14 - 1 -> the DPS is keylocked
15
Robert Jarzmik1f9327f2011-11-29 23:16:35 +010016Users: None identified so far.
17
18What: /sys/devices/platform/docg3/f[0-3]_dps[01]_protection_key
19Date: November 2011
20KernelVersion: 3.3
21Contact: Robert Jarzmik <robert.jarzmik@free.fr>
22Description:
23 Enter the protection key for the floor (0 to 4), protection area
24 (0 or 1). Each docg3 chip (or floor) has 2 protection areas,
25 which can cover any part of it, block aligned, called DPS.
26 The protection has information embedded whether it blocks reads,
27 writes or both.
28 The protection key is a string of 8 bytes (value 0-255).
29 Entering the correct value toggle the lock, and can be observed
30 through f[0-3]_dps[01]_is_keylocked.
31 Possible values are:
Mauro Carvalho Chehab34433332020-10-30 08:40:39 +010032
Robert Jarzmik1f9327f2011-11-29 23:16:35 +010033 - 8 bytes
Mauro Carvalho Chehab34433332020-10-30 08:40:39 +010034
Robert Jarzmik1f9327f2011-11-29 23:16:35 +010035 Typical values are:
Mauro Carvalho Chehab34433332020-10-30 08:40:39 +010036
Robert Jarzmik1f9327f2011-11-29 23:16:35 +010037 - "00000000"
38 - "12345678"
Mauro Carvalho Chehab34433332020-10-30 08:40:39 +010039
Robert Jarzmik1f9327f2011-11-29 23:16:35 +010040Users: None identified so far.