Through the Console application I found these messages. Hope they help.
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04/12/13 22:16:09,000 kernel[0]: AppleHSSPIController::_enumerateDeviceOnThreadGated Already attempting to enumerate device
04/12/13 22:16:09,000 kernel[0]: Error: AppleHSSPIController::InterruptOccurred Failed to transfer interrupt data with Err (0xe00002eb)
04/12/13 22:16:09,000 kernel[0]: Error: AppleHSSPIController::doSPITransfer CRC from device was invalid
04/12/13 22:16:09,000 kernel[0]: Error: AppleHSSPIController::doSPITransfer Nak received from device
04/12/13 22:16:09,000 kernel[0]: Error: AppleHSSPIController::InterruptOccurred Failed to transfer interrupt data with Err (0xe00002c9)
04/12/13 22:16:09,000 kernel[0]: Error: AppleHSSPIController::doSPITransfer CRC from device was invalid
04/12/13 22:16:09,000 kernel[0]: Error: AppleHSSPIController::doSPITransfer Nak received from device
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04/12/13 22:16:12,000 kernel[0]: AppleHSSPIController::_enumerateDeviceOnThreadGated Already attempting to enumerate device
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04/12/13 22:16:49,000 kernel[0]: Error: AppleHSSPIController::doSPITransfer Nak received from device
04/12/13 22:16:49,000 kernel[0]: AppleHSSPIController::_enumerateDeviceOnThreadGated Already attempting to enumerate device
04/12/13 22:16:49,000 kernel[0]: Error: AppleHSSPIDevice::_DoDescriptorRequestGated Failed issue request error: 0xe00002eb
04/12/13 22:16:49,000 kernel[0]: Error: AppleHSSPIDevice::getDeviceDescriptor Failed to get descriptor with error 0xe00002eb
04/12/13 22:16:49,000 kernel[0]: Error: AppleHSSPIDevice::start failed to get device descriptor
04/12/13 22:16:49,000 kernel[0]: Error: AppleHSSPIController::_enumerateDevice Start failed
04/12/13 22:16:49,000 kernel[0]: Error: AppleHSSPIController::_handleEnumerationFailureGated Failed to enumerate the device. Resetting the device and trying to enumerate again. Attempt:4
04/12/13 22:16:50,000 kernel[0]: Error: AppleHSSPIController::doSPITransfer CRC from device was invalid
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04/12/13 22:16:50,000 kernel[0]: Error: AppleHSSPIController::doSPITransfer Nak received from device
04/12/13 22:16:50,000 kernel[0]: AppleHSSPIController::_enumerateDeviceOnThreadGated Already attempting to enumerate device
04/12/13 22:16:50,000 kernel[0]: Error: AppleHSSPIDevice::_DoDescriptorRequestGated Failed issue request error: 0xe00002eb
04/12/13 22:16:50,000 kernel[0]: Error: AppleHSSPIDevice::getDeviceDescriptor Failed to get descriptor with error 0xe00002eb
04/12/13 22:16:50,000 kernel[0]: Error: AppleHSSPIController::doSPITransfer CRC from device was invalid
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04/12/13 22:16:50,000 kernel[0]: Error: AppleHSSPIController::_enumerateDevice Start failed
04/12/13 22:16:50,000 kernel[0]: Error: AppleHSSPIController::_handleEnumerationFailureGated Giving up on device
04/12/13 22:19:30,126 com.apple.ShareKitHelper[289]: --warning: [ShareKit-XPC] Received XPC_ERROR_CONNECTION_INVALID
04/12/13 22:19:30,129 com.apple.ShareKitHelper[289]: --warning: [ShareKit-XPC] connectionWithClientInterrupted
04/12/13 22:19:30,130 com.apple.ShareKitHelper[289]: --warning: [ShareKit] Cancel UI for running services with Client PID: 256
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::ISP_LoadFirmware_gated: fw len=1521776
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::setPowerStateGated: 1
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::power_on_hardware
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::acpiControlS2ChipPower - powerState=1, status = 0x0, result_value = 0x0
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::EnableS2Chip - power up took 2 us (ok)
04/12/13 22:23:29,000 kernel[0]: s2_pll_reset: S2 PLL Reset is done!!!
04/12/13 22:23:29,000 kernel[0]: save_ddr_phy_regs: saving 127 DDR PHY shmoo-calibrated registers
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::power_on_hardware - Memory OKAY
04/12/13 22:23:29,000 kernel[0]: power_on_hardware: DDR (re)initialization complete - execution time = 186001 us
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::ISP_Init - No set-file loaded for camera
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::ISP_InitialSensorDetection - found sensor on chan 0: 0x9770
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::message
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::ISP_LoadSetfile_gated (camChan=0)
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::setPowerStateGated: 0
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::power_off_hardware
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::DisableS2Chip
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::acpiControlS2ChipPower - powerState=0, status = 0x0, result_value = 0x0
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::message
04/12/13 22:23:29,000 kernel[0]: AppleCamIn::message
04/12/13 22:34:15,165 coreaudiod[142]: Disabled automatic stack shots because audio IO is active
04/12/13 22:34:24,741 coreaudiod[142]: Enabled automatic stack shots because audio IO is inactive
04/12/13 22:50:03,160 Dock[139]: no information back from LS about running process