11 files changed, 77 insertions, 77 deletions
diff --git a/Demos/Host/ClassDriver/JoystickHostWithParser/makefile b/Demos/Host/ClassDriver/JoystickHostWithParser/makefile
index f72c1e300..e5c3429a9 100644
--- a/Demos/Host/ClassDriver/JoystickHostWithParser/makefile
+++ b/Demos/Host/ClassDriver/JoystickHostWithParser/makefile
@@ -79,8 +79,8 @@ BOARD = USBKEY
 #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
 #     automatically to create a 32-bit value in your source code.
 #
-#     This will be an integer division of F_CLOCK below, as it is sourced by
-#     F_CLOCK after it has run through any CPU prescalers. Note that this value
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
 #     does not *change* the processor frequency - it should merely be updated to
 #     reflect the processor speed set externally so that the code can use accurate
 #     software delays.
@@ -88,7 +88,7 @@ F_CPU = 8000000
 
 
 # Input clock frequency.
-#     This will define a symbol, F_CLOCK, in all source code files equal to the
+#     This will define a symbol, F_USB, in all source code files equal to the
 #     input clock frequency (before any prescaling is performed) in Hz. This value may
 #     differ from F_CPU if prescaling is used on the latter, and is required as the
 #     raw input clock is fed directly to the PLL sections of the AVR for high speed
@@ -98,7 +98,7 @@ F_CPU = 8000000
 #
 #     If no clock division is performed on the input clock inside the AVR (via the
 #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-F_CLOCK = $(F_CPU)
+F_USB = $(F_CPU)
 
 
 # Output format. (can be srec, ihex, binary)
@@ -179,20 +179,20 @@ CSTANDARD = -std=c99
 
 # Place -D or -U options here for C sources
 CDEFS  = -DF_CPU=$(F_CPU)UL
-CDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CDEFS += -DF_USB=$(F_USB)UL
 CDEFS += -DBOARD=BOARD_$(BOARD) -DARCH=ARCH_$(ARCH)
 CDEFS += $(LUFA_OPTS)
 
 
 # Place -D or -U options here for ASM sources
 ADEFS  = -DF_CPU=$(F_CPU)
-ADEFS += -DF_CLOCK=$(F_CLOCK)UL
+ADEFS += -DF_USB=$(F_USB)UL
 ADEFS += -DBOARD=BOARD_$(BOARD)
 ADEFS += $(LUFA_OPTS)
 
 # Place -D or -U options here for C++ sources
 CPPDEFS  = -DF_CPU=$(F_CPU)UL
-CPPDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CPPDEFS += -DF_USB=$(F_USB)UL
 CPPDEFS += -DBOARD=BOARD_$(BOARD)
 CPPDEFS += $(LUFA_OPTS)
 #CPPDEFS += -D__STDC_LIMIT_MACROS
diff --git a/Demos/Host/ClassDriver/KeyboardHost/makefile b/Demos/Host/ClassDriver/KeyboardHost/makefile
index ba0e92fe0..4eb696812 100644
--- a/Demos/Host/ClassDriver/KeyboardHost/makefile
+++ b/Demos/Host/ClassDriver/KeyboardHost/makefile
@@ -79,8 +79,8 @@ BOARD = USBKEY
 #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
 #     automatically to create a 32-bit value in your source code.
 #
-#     This will be an integer division of F_CLOCK below, as it is sourced by
-#     F_CLOCK after it has run through any CPU prescalers. Note that this value
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
 #     does not *change* the processor frequency - it should merely be updated to
 #     reflect the processor speed set externally so that the code can use accurate
 #     software delays.
@@ -88,7 +88,7 @@ F_CPU = 8000000
 
 
 # Input clock frequency.
-#     This will define a symbol, F_CLOCK, in all source code files equal to the
+#     This will define a symbol, F_USB, in all source code files equal to the
 #     input clock frequency (before any prescaling is performed) in Hz. This value may
 #     differ from F_CPU if prescaling is used on the latter, and is required as the
 #     raw input clock is fed directly to the PLL sections of the AVR for high speed
@@ -98,7 +98,7 @@ F_CPU = 8000000
 #
 #     If no clock division is performed on the input clock inside the AVR (via the
 #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-F_CLOCK = $(F_CPU)
+F_USB = $(F_CPU)
 
 
 # Output format. (can be srec, ihex, binary)
@@ -179,20 +179,20 @@ CSTANDARD = -std=c99
 
 # Place -D or -U options here for C sources
 CDEFS  = -DF_CPU=$(F_CPU)UL
-CDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CDEFS += -DF_USB=$(F_USB)UL
 CDEFS += -DBOARD=BOARD_$(BOARD) -DARCH=ARCH_$(ARCH)
 CDEFS += $(LUFA_OPTS)
 
 
 # Place -D or -U options here for ASM sources
 ADEFS  = -DF_CPU=$(F_CPU)
-ADEFS += -DF_CLOCK=$(F_CLOCK)UL
+ADEFS += -DF_USB=$(F_USB)UL
 ADEFS += -DBOARD=BOARD_$(BOARD)
 ADEFS += $(LUFA_OPTS)
 
 # Place -D or -U options here for C++ sources
 CPPDEFS  = -DF_CPU=$(F_CPU)UL
-CPPDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CPPDEFS += -DF_USB=$(F_USB)UL
 CPPDEFS += -DBOARD=BOARD_$(BOARD)
 CPPDEFS += $(LUFA_OPTS)
 #CPPDEFS += -D__STDC_LIMIT_MACROS
diff --git a/Demos/Host/ClassDriver/KeyboardHostWithParser/makefile b/Demos/Host/ClassDriver/KeyboardHostWithParser/makefile
index b1070f9c8..171d4cdd5 100644
--- a/Demos/Host/ClassDriver/KeyboardHostWithParser/makefile
+++ b/Demos/Host/ClassDriver/KeyboardHostWithParser/makefile
@@ -79,8 +79,8 @@ BOARD = USBKEY
 #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
 #     automatically to create a 32-bit value in your source code.
 #
-#     This will be an integer division of F_CLOCK below, as it is sourced by
-#     F_CLOCK after it has run through any CPU prescalers. Note that this value
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
 #     does not *change* the processor frequency - it should merely be updated to
 #     reflect the processor speed set externally so that the code can use accurate
 #     software delays.
@@ -88,7 +88,7 @@ F_CPU = 8000000
 
 
 # Input clock frequency.
-#     This will define a symbol, F_CLOCK, in all source code files equal to the
+#     This will define a symbol, F_USB, in all source code files equal to the
 #     input clock frequency (before any prescaling is performed) in Hz. This value may
 #     differ from F_CPU if prescaling is used on the latter, and is required as the
 #     raw input clock is fed directly to the PLL sections of the AVR for high speed
@@ -98,7 +98,7 @@ F_CPU = 8000000
 #
 #     If no clock division is performed on the input clock inside the AVR (via the
 #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-F_CLOCK = $(F_CPU)
+F_USB = $(F_CPU)
 
 
 # Output format. (can be srec, ihex, binary)
@@ -179,20 +179,20 @@ CSTANDARD = -std=c99
 
 # Place -D or -U options here for C sources
 CDEFS  = -DF_CPU=$(F_CPU)UL
-CDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CDEFS += -DF_USB=$(F_USB)UL
 CDEFS += -DBOARD=BOARD_$(BOARD) -DARCH=ARCH_$(ARCH)
 CDEFS += $(LUFA_OPTS)
 
 
 # Place -D or -U options here for ASM sources
 ADEFS  = -DF_CPU=$(F_CPU)
-ADEFS += -DF_CLOCK=$(F_CLOCK)UL
+ADEFS += -DF_USB=$(F_USB)UL
 ADEFS += -DBOARD=BOARD_$(BOARD)
 ADEFS += $(LUFA_OPTS)
 
 # Place -D or -U options here for C++ sources
 CPPDEFS  = -DF_CPU=$(F_CPU)UL
-CPPDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CPPDEFS += -DF_USB=$(F_USB)UL
 CPPDEFS += -DBOARD=BOARD_$(BOARD)
 CPPDEFS += $(LUFA_OPTS)
 #CPPDEFS += -D__STDC_LIMIT_MACROS
diff --git a/Demos/Host/ClassDriver/MIDIHost/makefile b/Demos/Host/ClassDriver/MIDIHost/makefile
index 99e529f4d..39fcc705a 100644
--- a/Demos/Host/ClassDriver/MIDIHost/makefile
+++ b/Demos/Host/ClassDriver/MIDIHost/makefile
@@ -79,8 +79,8 @@ BOARD = USBKEY
 #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
 #     automatically to create a 32-bit value in your source code.
 #
-#     This will be an integer division of F_CLOCK below, as it is sourced by
-#     F_CLOCK after it has run through any CPU prescalers. Note that this value
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
 #     does not *change* the processor frequency - it should merely be updated to
 #     reflect the processor speed set externally so that the code can use accurate
 #     software delays.
@@ -88,7 +88,7 @@ F_CPU = 8000000
 
 
 # Input clock frequency.
-#     This will define a symbol, F_CLOCK, in all source code files equal to the
+#     This will define a symbol, F_USB, in all source code files equal to the
 #     input clock frequency (before any prescaling is performed) in Hz. This value may
 #     differ from F_CPU if prescaling is used on the latter, and is required as the
 #     raw input clock is fed directly to the PLL sections of the AVR for high speed
@@ -98,7 +98,7 @@ F_CPU = 8000000
 #
 #     If no clock division is performed on the input clock inside the AVR (via the
 #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-F_CLOCK = $(F_CPU)
+F_USB = $(F_CPU)
 
 
 # Output format. (can be srec, ihex, binary)
@@ -179,20 +179,20 @@ CSTANDARD = -std=c99
 
 # Place -D or -U options here for C sources
 CDEFS  = -DF_CPU=$(F_CPU)UL
-CDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CDEFS += -DF_USB=$(F_USB)UL
 CDEFS += -DBOARD=BOARD_$(BOARD) -DARCH=ARCH_$(ARCH)
 CDEFS += $(LUFA_OPTS)
 
 
 # Place -D or -U options here for ASM sources
 ADEFS  = -DF_CPU=$(F_CPU)
-ADEFS += -DF_CLOCK=$(F_CLOCK)UL
+ADEFS += -DF_USB=$(F_USB)UL
 ADEFS += -DBOARD=BOARD_$(BOARD)
 ADEFS += $(LUFA_OPTS)
 
 # Place -D or -U options here for C++ sources
 CPPDEFS  = -DF_CPU=$(F_CPU)UL
-CPPDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CPPDEFS += -DF_USB=$(F_USB)UL
 CPPDEFS += -DBOARD=BOARD_$(BOARD)
 CPPDEFS += $(LUFA_OPTS)
 #CPPDEFS += -D__STDC_LIMIT_MACROS
diff --git a/Demos/Host/ClassDriver/MassStorageHost/makefile b/Demos/Host/ClassDriver/MassStorageHost/makefile
index 22b9b14ca..8cbf111e6 100644
--- a/Demos/Host/ClassDriver/MassStorageHost/makefile
+++ b/Demos/Host/ClassDriver/MassStorageHost/makefile
@@ -79,8 +79,8 @@ BOARD = USBKEY
 #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
 #     automatically to create a 32-bit value in your source code.
 #
-#     This will be an integer division of F_CLOCK below, as it is sourced by
-#     F_CLOCK after it has run through any CPU prescalers. Note that this value
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
 #     does not *change* the processor frequency - it should merely be updated to
 #     reflect the processor speed set externally so that the code can use accurate
 #     software delays.
@@ -88,7 +88,7 @@ F_CPU = 8000000
 
 
 # Input clock frequency.
-#     This will define a symbol, F_CLOCK, in all source code files equal to the
+#     This will define a symbol, F_USB, in all source code files equal to the
 #     input clock frequency (before any prescaling is performed) in Hz. This value may
 #     differ from F_CPU if prescaling is used on the latter, and is required as the
 #     raw input clock is fed directly to the PLL sections of the AVR for high speed
@@ -98,7 +98,7 @@ F_CPU = 8000000
 #
 #     If no clock division is performed on the input clock inside the AVR (via the
 #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-F_CLOCK = $(F_CPU)
+F_USB = $(F_CPU)
 
 
 # Output format. (can be srec, ihex, binary)
@@ -180,20 +180,20 @@ CSTANDARD = -std=c99
 
 # Place -D or -U options here for C sources
 CDEFS  = -DF_CPU=$(F_CPU)UL
-CDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CDEFS += -DF_USB=$(F_USB)UL
 CDEFS += -DBOARD=BOARD_$(BOARD) -DARCH=ARCH_$(ARCH)
 CDEFS += $(LUFA_OPTS)
 
 
 # Place -D or -U options here for ASM sources
 ADEFS  = -DF_CPU=$(F_CPU)
-ADEFS += -DF_CLOCK=$(F_CLOCK)UL
+ADEFS += -DF_USB=$(F_USB)UL
 ADEFS += -DBOARD=BOARD_$(BOARD)
 ADEFS += $(LUFA_OPTS)
 
 # Place -D or -U options here for C++ sources
 CPPDEFS  = -DF_CPU=$(F_CPU)UL
-CPPDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CPPDEFS += -DF_USB=$(F_USB)UL
 CPPDEFS += -DBOARD=BOARD_$(BOARD)
 CPPDEFS += $(LUFA_OPTS)
 #CPPDEFS += -D__STDC_LIMIT_MACROS
diff --git a/Demos/Host/ClassDriver/MouseHost/makefile b/Demos/Host/ClassDriver/MouseHost/makefile
index 748213a1a..7126d6bba 100644
--- a/Demos/Host/ClassDriver/MouseHost/makefile
+++ b/Demos/Host/ClassDriver/MouseHost/makefile
@@ -79,8 +79,8 @@ BOARD = USBKEY
 #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
 #     automatically to create a 32-bit value in your source code.
 #
-#     This will be an integer division of F_CLOCK below, as it is sourced by
-#     F_CLOCK after it has run through any CPU prescalers. Note that this value
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
 #     does not *change* the processor frequency - it should merely be updated to
 #     reflect the processor speed set externally so that the code can use accurate
 #     software delays.
@@ -88,7 +88,7 @@ F_CPU = 8000000
 
 
 # Input clock frequency.
-#     This will define a symbol, F_CLOCK, in all source code files equal to the
+#     This will define a symbol, F_USB, in all source code files equal to the
 #     input clock frequency (before any prescaling is performed) in Hz. This value may
 #     differ from F_CPU if prescaling is used on the latter, and is required as the
 #     raw input clock is fed directly to the PLL sections of the AVR for high speed
@@ -98,7 +98,7 @@ F_CPU = 8000000
 #
 #     If no clock division is performed on the input clock inside the AVR (via the
 #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-F_CLOCK = $(F_CPU)
+F_USB = $(F_CPU)
 
 
 # Output format. (can be srec, ihex, binary)
@@ -179,20 +179,20 @@ CSTANDARD = -std=c99
 
 # Place -D or -U options here for C sources
 CDEFS  = -DF_CPU=$(F_CPU)UL
-CDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CDEFS += -DF_USB=$(F_USB)UL
 CDEFS += -DBOARD=BOARD_$(BOARD) -DARCH=ARCH_$(ARCH)
 CDEFS += $(LUFA_OPTS)
 
 
 # Place -D or -U options here for ASM sources
 ADEFS  = -DF_CPU=$(F_CPU)
-ADEFS += -DF_CLOCK=$(F_CLOCK)UL
+ADEFS += -DF_USB=$(F_USB)UL
 ADEFS += -DBOARD=BOARD_$(BOARD)
 ADEFS += $(LUFA_OPTS)
 
 # Place -D or -U options here for C++ sources
 CPPDEFS  = -DF_CPU=$(F_CPU)UL
-CPPDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CPPDEFS += -DF_USB=$(F_USB)UL
 CPPDEFS += -DBOARD=BOARD_$(BOARD)
 CPPDEFS += $(LUFA_OPTS)
 #CPPDEFS += -D__STDC_LIMIT_MACROS
diff --git a/Demos/Host/ClassDriver/MouseHostWithParser/makefile b/Demos/Host/ClassDriver/MouseHostWithParser/makefile
index 040f2697e..b5fd3cf55 100644
--- a/Demos/Host/ClassDriver/MouseHostWithParser/makefile
+++ b/Demos/Host/ClassDriver/MouseHostWithParser/makefile
@@ -79,8 +79,8 @@ BOARD = USBKEY
 #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
 #     automatically to create a 32-bit value in your source code.
 #
-#     This will be an integer division of F_CLOCK below, as it is sourced by
-#     F_CLOCK after it has run through any CPU prescalers. Note that this value
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
 #     does not *change* the processor frequency - it should merely be updated to
 #     reflect the processor speed set externally so that the code can use accurate
 #     software delays.
@@ -88,7 +88,7 @@ F_CPU = 8000000
 
 
 # Input clock frequency.
-#     This will define a symbol, F_CLOCK, in all source code files equal to the
+#     This will define a symbol, F_USB, in all source code files equal to the
 #     input clock frequency (before any prescaling is performed) in Hz. This value may
 #     differ from F_CPU if prescaling is used on the latter, and is required as the
 #     raw input clock is fed directly to the PLL sections of the AVR for high speed
@@ -98,7 +98,7 @@ F_CPU = 8000000
 #
 #     If no clock division is performed on the input clock inside the AVR (via the
 #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-F_CLOCK = $(F_CPU)
+F_USB = $(F_CPU)
 
 
 # Output format. (can be srec, ihex, binary)
@@ -179,20 +179,20 @@ CSTANDARD = -std=c99
 
 # Place -D or -U options here for C sources
 CDEFS  = -DF_CPU=$(F_CPU)UL
-CDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CDEFS += -DF_USB=$(F_USB)UL
 CDEFS += -DBOARD=BOARD_$(BOARD) -DARCH=ARCH_$(ARCH)
 CDEFS += $(LUFA_OPTS)
 
 
 # Place -D or -U options here for ASM sources
 ADEFS  = -DF_CPU=$(F_CPU)
-ADEFS += -DF_CLOCK=$(F_CLOCK)UL
+ADEFS += -DF_USB=$(F_USB)UL
 ADEFS += -DBOARD=BOARD_$(BOARD)
 ADEFS += $(LUFA_OPTS)
 
 # Place -D or -U options here for C++ sources
 CPPDEFS  = -DF_CPU=$(F_CPU)UL
-CPPDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CPPDEFS += -DF_USB=$(F_USB)UL
 CPPDEFS += -DBOARD=BOARD_$(BOARD)
 CPPDEFS += $(LUFA_OPTS)
 #CPPDEFS += -D__STDC_LIMIT_MACROS
diff --git a/Demos/Host/ClassDriver/PrinterHost/makefile b/Demos/Host/ClassDriver/PrinterHost/makefile
index 85638aec5..401f340a9 100644
--- a/Demos/Host/ClassDriver/PrinterHost/makefile
+++ b/Demos/Host/ClassDriver/PrinterHost/makefile
@@ -79,8 +79,8 @@ BOARD = USBKEY
 #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
 #     automatically to create a 32-bit value in your source code.
 #
-#     This will be an integer division of F_CLOCK below, as it is sourced by
-#     F_CLOCK after it has run through any CPU prescalers. Note that this value
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
 #     does not *change* the processor frequency - it should merely be updated to
 #     reflect the processor speed set externally so that the code can use accurate
 #     software delays.
@@ -88,7 +88,7 @@ F_CPU = 8000000
 
 
 # Input clock frequency.
-#     This will define a symbol, F_CLOCK, in all source code files equal to the
+#     This will define a symbol, F_USB, in all source code files equal to the
 #     input clock frequency (before any prescaling is performed) in Hz. This value may
 #     differ from F_CPU if prescaling is used on the latter, and is required as the
 #     raw input clock is fed directly to the PLL sections of the AVR for high speed
@@ -98,7 +98,7 @@ F_CPU = 8000000
 #
 #     If no clock division is performed on the input clock inside the AVR (via the
 #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-F_CLOCK = $(F_CPU)
+F_USB = $(F_CPU)
 
 
 # Output format. (can be srec, ihex, binary)
@@ -179,20 +179,20 @@ CSTANDARD = -std=c99
 
 # Place -D or -U options here for C sources
 CDEFS  = -DF_CPU=$(F_CPU)UL
-CDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CDEFS += -DF_USB=$(F_USB)UL
 CDEFS += -DBOARD=BOARD_$(BOARD) -DARCH=ARCH_$(ARCH)
 CDEFS += $(LUFA_OPTS)
 
 
 # Place -D or -U options here for ASM sources
 ADEFS  = -DF_CPU=$(F_CPU)
-ADEFS += -DF_CLOCK=$(F_CLOCK)UL
+ADEFS += -DF_USB=$(F_USB)UL
 ADEFS += -DBOARD=BOARD_$(BOARD)
 ADEFS += $(LUFA_OPTS)
 
 # Place -D or -U options here for C++ sources
 CPPDEFS  = -DF_CPU=$(F_CPU)UL
-CPPDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CPPDEFS += -DF_USB=$(F_USB)UL
 CPPDEFS += -DBOARD=BOARD_$(BOARD)
 CPPDEFS += $(LUFA_OPTS)
 #CPPDEFS += -D__STDC_LIMIT_MACROS
diff --git a/Demos/Host/ClassDriver/RNDISEthernetHost/makefile b/Demos/Host/ClassDriver/RNDISEthernetHost/makefile
index 9ed8fb08e..7ebd355bc 100644
--- a/Demos/Host/ClassDriver/RNDISEthernetHost/makefile
+++ b/Demos/Host/ClassDriver/RNDISEthernetHost/makefile
@@ -79,8 +79,8 @@ BOARD = USBKEY
 #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
 #     automatically to create a 32-bit value in your source code.
 #
-#     This will be an integer division of F_CLOCK below, as it is sourced by
-#     F_CLOCK after it has run through any CPU prescalers. Note that this value
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
 #     does not *change* the processor frequency - it should merely be updated to
 #     reflect the processor speed set externally so that the code can use accurate
 #     software delays.
@@ -88,7 +88,7 @@ F_CPU = 8000000
 
 
 # Input clock frequency.
-#     This will define a symbol, F_CLOCK, in all source code files equal to the
+#     This will define a symbol, F_USB, in all source code files equal to the
 #     input clock frequency (before any prescaling is performed) in Hz. This value may
 #     differ from F_CPU if prescaling is used on the latter, and is required as the
 #     raw input clock is fed directly to the PLL sections of the AVR for high speed
@@ -98,7 +98,7 @@ F_CPU = 8000000
 #
 #     If no clock division is performed on the input clock inside the AVR (via the
 #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-F_CLOCK = $(F_CPU)
+F_USB = $(F_CPU)
 
 
 # Output format. (can be srec, ihex, binary)
@@ -179,20 +179,20 @@ CSTANDARD = -std=c99
 
 # Place -D or -U options here for C sources
 CDEFS  = -DF_CPU=$(F_CPU)UL
-CDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CDEFS += -DF_USB=$(F_USB)UL
 CDEFS += -DBOARD=BOARD_$(BOARD) -DARCH=ARCH_$(ARCH)
 CDEFS += $(LUFA_OPTS)
 
 
 # Place -D or -U options here for ASM sources
 ADEFS  = -DF_CPU=$(F_CPU)
-ADEFS += -DF_CLOCK=$(F_CLOCK)UL
+ADEFS += -DF_USB=$(F_USB)UL
 ADEFS += -DBOARD=BOARD_$(BOARD)
 ADEFS += $(LUFA_OPTS)
 
 # Place -D or -U options here for C++ sources
 CPPDEFS  = -DF_CPU=$(F_CPU)UL
-CPPDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CPPDEFS += -DF_USB=$(F_USB)UL
 CPPDEFS += -DBOARD=BOARD_$(BOARD)
 CPPDEFS += $(LUFA_OPTS)
 #CPPDEFS += -D__STDC_LIMIT_MACROS
diff --git a/Demos/Host/ClassDriver/StillImageHost/makefile b/Demos/Host/ClassDriver/StillImageHost/makefile
index 1c8a2c38b..6969bde81 100644
--- a/Demos/Host/ClassDriver/StillImageHost/makefile
+++ b/Demos/Host/ClassDriver/StillImageHost/makefile
@@ -79,8 +79,8 @@ BOARD = USBKEY
 #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
 #     automatically to create a 32-bit value in your source code.
 #
-#     This will be an integer division of F_CLOCK below, as it is sourced by
-#     F_CLOCK after it has run through any CPU prescalers. Note that this value
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
 #     does not *change* the processor frequency - it should merely be updated to
 #     reflect the processor speed set externally so that the code can use accurate
 #     software delays.
@@ -88,7 +88,7 @@ F_CPU = 8000000
 
 
 # Input clock frequency.
-#     This will define a symbol, F_CLOCK, in all source code files equal to the
+#     This will define a symbol, F_USB, in all source code files equal to the
 #     input clock frequency (before any prescaling is performed) in Hz. This value may
 #     differ from F_CPU if prescaling is used on the latter, and is required as the
 #     raw input clock is fed directly to the PLL sections of the AVR for high speed
@@ -98,7 +98,7 @@ F_CPU = 8000000
 #
 #     If no clock division is performed on the input clock inside the AVR (via the
 #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-F_CLOCK = $(F_CPU)
+F_USB = $(F_CPU)
 
 
 # Output format. (can be srec, ihex, binary)
@@ -179,20 +179,20 @@ CSTANDARD = -std=c99
 
 # Place -D or -U options here for C sources
 CDEFS  = -DF_CPU=$(F_CPU)UL
-CDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CDEFS += -DF_USB=$(F_USB)UL
 CDEFS += -DBOARD=BOARD_$(BOARD) -DARCH=ARCH_$(ARCH)
 CDEFS += $(LUFA_OPTS)
 
 
 # Place -D or -U options here for ASM sources
 ADEFS  = -DF_CPU=$(F_CPU)
-ADEFS += -DF_CLOCK=$(F_CLOCK)UL
+ADEFS += -DF_USB=$(F_USB)UL
 ADEFS += -DBOARD=BOARD_$(BOARD)
 ADEFS += $(LUFA_OPTS)
 
 # Place -D or -U options here for C++ sources
 CPPDEFS  = -DF_CPU=$(F_CPU)UL
-CPPDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CPPDEFS += -DF_USB=$(F_USB)UL
 CPPDEFS += -DBOARD=BOARD_$(BOARD)
 CPPDEFS += $(LUFA_OPTS)
 #CPPDEFS += -D__STDC_LIMIT_MACROS
diff --git a/Demos/Host/ClassDriver/VirtualSerialHost/makefile b/Demos/Host/ClassDriver/VirtualSerialHost/makefile
index 176e1fabf..45da06f16 100644
--- a/Demos/Host/ClassDriver/VirtualSerialHost/makefile
+++ b/Demos/Host/ClassDriver/VirtualSerialHost/makefile
@@ -79,8 +79,8 @@ BOARD = USBKEY
 #     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
 #     automatically to create a 32-bit value in your source code.
 #
-#     This will be an integer division of F_CLOCK below, as it is sourced by
-#     F_CLOCK after it has run through any CPU prescalers. Note that this value
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
 #     does not *change* the processor frequency - it should merely be updated to
 #     reflect the processor speed set externally so that the code can use accurate
 #     software delays.
@@ -88,7 +88,7 @@ F_CPU = 8000000
 
 
 # Input clock frequency.
-#     This will define a symbol, F_CLOCK, in all source code files equal to the
+#     This will define a symbol, F_USB, in all source code files equal to the
 #     input clock frequency (before any prescaling is performed) in Hz. This value may
 #     differ from F_CPU if prescaling is used on the latter, and is required as the
 #     raw input clock is fed directly to the PLL sections of the AVR for high speed
@@ -98,7 +98,7 @@ F_CPU = 8000000
 #
 #     If no clock division is performed on the input clock inside the AVR (via the
 #     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
-F_CLOCK = $(F_CPU)
+F_USB = $(F_CPU)
 
 
 # Output format. (can be srec, ihex, binary)
@@ -179,20 +179,20 @@ CSTANDARD = -std=c99
 
 # Place -D or -U options here for C sources
 CDEFS  = -DF_CPU=$(F_CPU)UL
-CDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CDEFS += -DF_USB=$(F_USB)UL
 CDEFS += -DBOARD=BOARD_$(BOARD) -DARCH=ARCH_$(ARCH)
 CDEFS += $(LUFA_OPTS)
 
 
 # Place -D or -U options here for ASM sources
 ADEFS  = -DF_CPU=$(F_CPU)
-ADEFS += -DF_CLOCK=$(F_CLOCK)UL
+ADEFS += -DF_USB=$(F_USB)UL
 ADEFS += -DBOARD=BOARD_$(BOARD)
 ADEFS += $(LUFA_OPTS)
 
 # Place -D or -U options here for C++ sources
 CPPDEFS  = -DF_CPU=$(F_CPU)UL
-CPPDEFS += -DF_CLOCK=$(F_CLOCK)UL
+CPPDEFS += -DF_USB=$(F_USB)UL
 CPPDEFS += -DBOARD=BOARD_$(BOARD)
 CPPDEFS += $(LUFA_OPTS)
 #CPPDEFS += -D__STDC_LIMIT_MACROS