| Robert Jarzmik | 1f9327f | 2011-11-29 23:16:35 +0100 | [diff] [blame] | 1 | What: /sys/devices/platform/docg3/f[0-3]_dps[01]_is_keylocked |
| 2 | Date: November 2011 |
| 3 | KernelVersion: 3.3 |
| 4 | Contact: Robert Jarzmik <robert.jarzmik@free.fr> |
| 5 | Description: |
| 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 |
| 14 | Users: None identified so far. |
| 15 | |
| 16 | What: /sys/devices/platform/docg3/f[0-3]_dps[01]_protection_key |
| 17 | Date: November 2011 |
| 18 | KernelVersion: 3.3 |
| 19 | Contact: Robert Jarzmik <robert.jarzmik@free.fr> |
| 20 | Description: |
| 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" |
| 34 | Users: None identified so far. |