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@@ -60,4 +60,25 @@ On **Xorg** you can use `compose` key, instead.
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- http://en.wikipedia.org/wiki/Compose_key
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And see this for **Unicode** input.
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-- http://en.wikipedia.org/wiki/Unicode_input
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+- http://en.wikipedia.org/wiki/Unicode_input
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+
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+
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+### Apple keyboard Fn
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+Not supported.
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+
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+Apple keyboard sends keycod for Fn unlike most of other keyboards.
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+I think you can send Apple Fn key using Appleventer Page 0xff00 and usage 0x0003. You have to change HID Report Descriptor, of course.
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+
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+https://opensource.apple.com/source/IOHIDFamily/IOHIDFamily-606.1.7/IOHIDFamily/AppleHIDUsageTables.h
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+
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+
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+## Mac OSX suppors key?
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+You can know which keycodes are supported in OSX from this source code.
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+
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+`usb_2_adb_keymap` array maps Keyboard/Keypad Page usages to ADB scancodes(OSX internal keycodes).
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+
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+https://opensource.apple.com/source/IOHIDFamily/IOHIDFamily-606.1.7/IOHIDFamily/Cosmo_USB2ADB.c
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+
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+And `IOHIDConsumer::dispatchConsumerEvent` handles Consumer page usages.
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+
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+https://opensource.apple.com/source/IOHIDFamily/IOHIDFamily-606.1.7/IOHIDFamily/IOHIDConsumer.cpp
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tmk