11f9327fcSRobert JarzmikWhat: /sys/devices/platform/docg3/f[0-3]_dps[01]_is_keylocked 21f9327fcSRobert JarzmikDate: November 2011 31f9327fcSRobert JarzmikKernelVersion: 3.3 41f9327fcSRobert JarzmikContact: Robert Jarzmik <robert.jarzmik@free.fr> 51f9327fcSRobert JarzmikDescription: 61f9327fcSRobert Jarzmik Show whether the floor (0 to 4), protection area (0 or 1) is 71f9327fcSRobert Jarzmik keylocked. Each docg3 chip (or floor) has 2 protection areas, 81f9327fcSRobert Jarzmik which can cover any part of it, block aligned, called DPS. 91f9327fcSRobert Jarzmik The protection has information embedded whether it blocks reads, 101f9327fcSRobert Jarzmik writes or both. 111f9327fcSRobert Jarzmik The result is: 1234433332SMauro Carvalho Chehab 1334433332SMauro Carvalho Chehab - 0 -> the DPS is not keylocked 1434433332SMauro Carvalho Chehab - 1 -> the DPS is keylocked 1534433332SMauro Carvalho Chehab 161f9327fcSRobert JarzmikUsers: None identified so far. 171f9327fcSRobert Jarzmik 181f9327fcSRobert JarzmikWhat: /sys/devices/platform/docg3/f[0-3]_dps[01]_protection_key 191f9327fcSRobert JarzmikDate: November 2011 201f9327fcSRobert JarzmikKernelVersion: 3.3 211f9327fcSRobert JarzmikContact: Robert Jarzmik <robert.jarzmik@free.fr> 221f9327fcSRobert JarzmikDescription: 231f9327fcSRobert Jarzmik Enter the protection key for the floor (0 to 4), protection area 241f9327fcSRobert Jarzmik (0 or 1). Each docg3 chip (or floor) has 2 protection areas, 251f9327fcSRobert Jarzmik which can cover any part of it, block aligned, called DPS. 261f9327fcSRobert Jarzmik The protection has information embedded whether it blocks reads, 271f9327fcSRobert Jarzmik writes or both. 281f9327fcSRobert Jarzmik The protection key is a string of 8 bytes (value 0-255). 291f9327fcSRobert Jarzmik Entering the correct value toggle the lock, and can be observed 301f9327fcSRobert Jarzmik through f[0-3]_dps[01]_is_keylocked. 311f9327fcSRobert Jarzmik Possible values are: 3234433332SMauro Carvalho Chehab 331f9327fcSRobert Jarzmik - 8 bytes 3434433332SMauro Carvalho Chehab 351f9327fcSRobert Jarzmik Typical values are: 3634433332SMauro Carvalho Chehab 371f9327fcSRobert Jarzmik - "00000000" 381f9327fcSRobert Jarzmik - "12345678" 3934433332SMauro Carvalho Chehab 401f9327fcSRobert JarzmikUsers: None identified so far. 41