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From Htc-linux

cc - KLT1: The I2C id is 0x66 (0xcc>>1)

cc,10,val8 channel interpolation ; wr
cc,11,val8 total runtimes ; wr
cc,12,<0a,x pointsequence cmd+buf ; wr mul
cc,13,<0a,x pointsequence cmd+buf; wr mul
cc,14,<0a,x pointsequence cmd+buf; wr mul
cc,15,<0a,x pointsequence cmd+buf; wr mul
cc,16,2,x channel power enable; wr mul
cc,20,val8 ledmisc ; wr
cc,20,val8=02  lcd poweron related ; wr
cc,20,val8=0c  led ; wr
cc,20,80,30     leo100
cc,21,1/0,0,4    topa100, leo100: SPIcontrol
cc,22,val8  LCDbrightness ; wr -> wince manual control: 0x00 - 0x90
cc,23,02,x naviledbrightness_auto ; wr
leo100:
cc,23,1,0 ; init_frontlight ; wr

cc,24,04,x ledautomode ; wr
cc,25,02,x turnoffmethod, GPO control? ; wr 

cc,26,02,x ledflashtime ; wr
leo100:
cc,26,1,0       ; wr -> backlight on/off

cc,30,02,x - get ledversion ; rd
cc,31,02,x readchannel power enable ; rd
cc,32,02,x ADClevel, brightnesslevel, msgled,resetsource ; rd
cc,33, ADCval read; light sensor -> read high byte of dword (0x0000 - 0xff00)
cc,40,xx,yy - see below
cc,41,3c,x -> LED TBL (hardcoded) ; wr mul
cc,42,[3c,1e],x -> DC TBL (hardcoded); wr mul
cc,43,[0a,3c],x -> NAVI TBL (hardcoded) ; wr mul
cc,50,01 ->  IOCTL_KEYPAD_REQUEST_KEYPAD_NOTIFICATIONS
cc,50,00 ->  IOCTL_KEYPAD_STOP_KEYPAD_NOTIFICATIONS

leo100:
cc,51,val,4   -> extsystemLED behaviour
cc,64,   -> reqRemoteADCvalue

topa100:
cc,70,xx,3,1 -> wr, spilcmdata
cc,71,[a,11,29],0 -> wr, lcd control
cc,72,2,0    -> rd, lcd control

leo100:
cc,73,a,
cc,74,a,    -> reqGsensorData
cc,75,    -> reqGsensorXYZData
cc,76,    -> see table below
cc,77,    -> see table below
cc,78,    -> see table below
cc,79,    -> see table below
cc,90,    -> wr, EnableGPO : GPOStatus: 0x2000000, EnableGPOValue: 0x2
cc,91,0,3 -> wr, DisableGPO: GPOStatus: 0x0,DisableGPOValue: 0x3  
cc,a0,    -> wr, SetRotationPolling: RotationPollingCtrlValue: 0x10a01
cc,a2,    -> wr, SetFaceUpDownRotationInterrupt:
cc,a3,8,x -> wr, setRotationThreshold: [0]: 0x0 [1]: 0x40 [2]: 0xff [3]: 0xc0 [4]: 0x0 [5]: 0x40 [6]: 0xff [7]: 0xa6
cc,a4,    -> wr, SetFaceUpDownThreshold: FaceUpDownThresholdValue: 0x160016

cc,40,xx,yy:

raph:
ce - KSC1: keyboard, The I2C id is 0x67 (0xce>>1)

ce,10,02,x get result rd
ce,11,02,x get pin status rd
ce,12,02,x get_version rd (0,1)
 * RAPH800: 0685
 * RAPH100: -- fill me in
ce,13,val8 -> misc value (keyboard LEDs) ; rd/wr
  xx:
   * 0x10 - Fn and CAPS LED on
   * 0x12 - CAPS LED on
   * 0x14 - Fn LED on
   * 0x16 - Off

multi: id,addr,size/data,retry
       id,addr,size,(ptr) <- read

See RaphaelKeyboard for keymap

22:44:48 [D:KEY] [[I2C_RM]] (0xcc, 0x32, 0x2)~!
22:44:48 [D:BKL] Got "All_Awake" event~!

22:44:48 [D:BKL] HW_SetFlashLight 8 1
22:44:48 [D:MISC] [WriteSystemLedBehaviorToI2C]: dwSystemLEDBehaviorMask: 0xf1f dwSystemLEDBehavior: 0xffe5 dwPreSystemLEDBehavior: 0x20
22:44:48 [D:MISC] [WriteSystemLedBehaviorToI2C] Clear Batt Bit[[2:0]] 20

22:44:48 [D:MISC] [WriteNAVIBrightnessLEDAutoControlToI2C] dwNAVIValue: 0x178======
22:44:48 [D:KEY] [I2C_WM] (0xcc, 0x23, 0x2, 1 78)

22:44:26 [D:MISC] [KLT_Init] Microp write table start~!~!
22:44:26 [D:KEY] [I2C_WM] (0xcc, 0x41, 0x3c, 0 0)
22:44:26 [D:KEY] [I2C_WM] (0xcc, 0x42, 0x3c, 6 1b)
22:44:26 [D:KEY] [I2C_WM] (0xcc, 0x43, 0x3c, 20 20)