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# MacIntosh OS/X Specific Information

LProf is an open source application that creates ICC profile for cameras, scanners and monitors.

### USB Measurement Device Setup

#### Codeless Kernel Extension

Most measurement devices should just work without issues and without users having to do anything. The one known exception at this time is the HCFR color meter. The HCFR is a do it yourself device and is likely very uncommon. But if you have one of these devices you will need to install a codeless kernel extension. The LProf installation has already created the codeless kernel extension which is located in the /Applications/lprof.app/Contents/Argyll.kext directory. To install this use the following command:
sudo cp -R /Applications/lprof.app/Contents/Argyll.kext /System/Library/Extensions
Of course you will need to supply a root password when asked for it for this to work. The extension will be activated the next time the system is booted.

#### ColorVision Spyder 2

If you have a ColorVisions Spyder 2 you will have additional steps that are needed to fully install it. Please see the Spyder 2 installation help page for information that applies to all platforms for this device.

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