| What: /sys/devices/platform/docg3/f[0-3]_dps[01]_is_keylocked | |
| Date: November 2011 | |
| KernelVersion: 3.3 | |
| Contact: Robert Jarzmik <robert.jarzmik@free.fr> | |
| Description: | |
| Show whether the floor (0 to 4), protection area (0 or 1) is | |
| keylocked. Each docg3 chip (or floor) has 2 protection areas, | |
| which can cover any part of it, block aligned, called DPS. | |
| The protection has information embedded whether it blocks reads, | |
| writes or both. | |
| The result is: | |
| 0 -> the DPS is not keylocked | |
| 1 -> the DPS is keylocked | |
| Users: None identified so far. | |
| What: /sys/devices/platform/docg3/f[0-3]_dps[01]_protection_key | |
| Date: November 2011 | |
| KernelVersion: 3.3 | |
| Contact: Robert Jarzmik <robert.jarzmik@free.fr> | |
| Description: | |
| Enter the protection key for the floor (0 to 4), protection area | |
| (0 or 1). Each docg3 chip (or floor) has 2 protection areas, | |
| which can cover any part of it, block aligned, called DPS. | |
| The protection has information embedded whether it blocks reads, | |
| writes or both. | |
| The protection key is a string of 8 bytes (value 0-255). | |
| Entering the correct value toggle the lock, and can be observed | |
| through f[0-3]_dps[01]_is_keylocked. | |
| Possible values are: | |
| - 8 bytes | |
| Typical values are: | |
| - "00000000" | |
| - "12345678" | |
| Users: None identified so far. |