xref: /linux/Documentation/ABI/testing/sysfs-devices-platform-docg3 (revision c0c914eca7f251c70facc37dfebeaf176601918d)
1What:		/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:
12		0 -> the DPS is not keylocked
13		1 -> the DPS is keylocked
14Users:		None identified so far.
15
16What:		/sys/devices/platform/docg3/f[0-3]_dps[01]_protection_key
17Date:		November 2011
18KernelVersion:	3.3
19Contact:	Robert Jarzmik <robert.jarzmik@free.fr>
20Description:
21		Enter the protection key for the floor (0 to 4), protection area
22		(0 or 1). Each docg3 chip (or floor) has 2 protection areas,
23		which can cover any part of it, block aligned, called DPS.
24		The protection has information embedded whether it blocks reads,
25		writes or both.
26		The protection key is a string of 8 bytes (value 0-255).
27		Entering the correct value toggle the lock, and can be observed
28		through f[0-3]_dps[01]_is_keylocked.
29		Possible values are:
30			- 8 bytes
31		Typical values are:
32			- "00000000"
33			- "12345678"
34Users:		None identified so far.
35