1*4882a593SmuzhiyunWhat: /sys/devices/platform/docg3/f[0-3]_dps[01]_is_keylocked 2*4882a593SmuzhiyunDate: November 2011 3*4882a593SmuzhiyunKernelVersion: 3.3 4*4882a593SmuzhiyunContact: Robert Jarzmik <robert.jarzmik@free.fr> 5*4882a593SmuzhiyunDescription: 6*4882a593Smuzhiyun Show whether the floor (0 to 4), protection area (0 or 1) is 7*4882a593Smuzhiyun keylocked. Each docg3 chip (or floor) has 2 protection areas, 8*4882a593Smuzhiyun which can cover any part of it, block aligned, called DPS. 9*4882a593Smuzhiyun The protection has information embedded whether it blocks reads, 10*4882a593Smuzhiyun writes or both. 11*4882a593Smuzhiyun The result is: 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun - 0 -> the DPS is not keylocked 14*4882a593Smuzhiyun - 1 -> the DPS is keylocked 15*4882a593Smuzhiyun 16*4882a593SmuzhiyunUsers: None identified so far. 17*4882a593Smuzhiyun 18*4882a593SmuzhiyunWhat: /sys/devices/platform/docg3/f[0-3]_dps[01]_protection_key 19*4882a593SmuzhiyunDate: November 2011 20*4882a593SmuzhiyunKernelVersion: 3.3 21*4882a593SmuzhiyunContact: Robert Jarzmik <robert.jarzmik@free.fr> 22*4882a593SmuzhiyunDescription: 23*4882a593Smuzhiyun Enter the protection key for the floor (0 to 4), protection area 24*4882a593Smuzhiyun (0 or 1). Each docg3 chip (or floor) has 2 protection areas, 25*4882a593Smuzhiyun which can cover any part of it, block aligned, called DPS. 26*4882a593Smuzhiyun The protection has information embedded whether it blocks reads, 27*4882a593Smuzhiyun writes or both. 28*4882a593Smuzhiyun The protection key is a string of 8 bytes (value 0-255). 29*4882a593Smuzhiyun Entering the correct value toggle the lock, and can be observed 30*4882a593Smuzhiyun through f[0-3]_dps[01]_is_keylocked. 31*4882a593Smuzhiyun Possible values are: 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun - 8 bytes 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun Typical values are: 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun - "00000000" 38*4882a593Smuzhiyun - "12345678" 39*4882a593Smuzhiyun 40*4882a593SmuzhiyunUsers: None identified so far. 41