Add static keyword to all project globals whose scope should be restricted to...

Add static keyword to all project globals whose scope should be restricted to the same module as they are declared in.

Tighten up the HID class bootloader code slightly, document that it currently exceeds 2KB of bootloader space for all models other than the Series 2 USB AVRs.

Bootloaders/CDC/BootloaderCDC.c

@@ -39,22 +39,22 @@
 /** Contains the current baud rate and other settings of the first virtual serial port. This must be retained as some
  *  operating systems will not open the port unless the settings can be set successfully.
  */
-CDC_Line_Coding_t LineEncoding = { .BaudRateBPS = 0,
-                                   .CharFormat  = OneStopBit,
-                                   .ParityType  = Parity_None,
-                                   .DataBits    = 8            };
+static CDC_LineEncoding_t LineEncoding = { .BaudRateBPS = 0,
+                                           .CharFormat  = CDC_LINEENCODING_OneStopBit,
+                                           .ParityType  = CDC_PARITY_None,
+                                           .DataBits    = 8                            };
 
 /** Current address counter. This stores the current address of the FLASH or EEPROM as set by the host,
  *  and is used when reading or writing to the AVRs memory (either FLASH or EEPROM depending on the issued
  *  command.)
  */
-uint32_t CurrAddress;
+static uint32_t CurrAddress;
 
 /** Flag to indicate if the bootloader should be running, or should exit and allow the application code to run
  *  via a watchdog reset. When cleared the bootloader will exit, starting the watchdog and entering an infinite
  *  loop until the AVR restarts and the application runs.
  */
-bool RunBootloader = true;
+static bool RunBootloader = true;
 
 
 /** Main program entry point. This routine configures the hardware required by the bootloader, then continuously
@@ -137,24 +137,24 @@ void EVENT_USB_Device_ControlRequest(void)
 	/* Process CDC specific control requests */
 	switch (USB_ControlRequest.bRequest)
 	{
-		case REQ_GetLineEncoding:
+		case CDC_REQ_GetLineEncoding:
 			if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
 			{
 				Endpoint_ClearSETUP();
 
 				/* Write the line coding data to the control endpoint */
-				Endpoint_Write_Control_Stream_LE(&LineEncoding, sizeof(CDC_Line_Coding_t));
+				Endpoint_Write_Control_Stream_LE(&LineEncoding, sizeof(CDC_LineEncoding_t));
 				Endpoint_ClearOUT();
 			}
 
 			break;
-		case REQ_SetLineEncoding:
+		case CDC_REQ_SetLineEncoding:
 			if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
 			{
 				Endpoint_ClearSETUP();
 
 				/* Read the line coding data in from the host into the global struct */
-				Endpoint_Read_Control_Stream_LE(&LineEncoding, sizeof(CDC_Line_Coding_t));
+				Endpoint_Read_Control_Stream_LE(&LineEncoding, sizeof(CDC_LineEncoding_t));
 				Endpoint_ClearIN();
 			}
 

Bootloaders/CDC/BootloaderCDC.h

@@ -65,50 +65,10 @@
 		/** Eight character bootloader firmware identifier reported to the host when requested */
 		#define SOFTWARE_IDENTIFIER          "LUFACDC"
 
-		/** CDC Class specific request to get the current virtual serial port configuration settings. */
-		#define REQ_GetLineEncoding          0x21
-
-		/** CDC Class specific request to set the current virtual serial port configuration settings. */
-		#define REQ_SetLineEncoding          0x20
-
 	/* Type Defines: */
-		/** Type define for the virtual serial port line encoding settings, for storing the current USART configuration
-		 *  as set by the host via a class specific request.
-		 */
-		typedef struct
-		{
-			uint32_t BaudRateBPS; /**< Baud rate of the virtual serial port, in bits per second */
-			uint8_t  CharFormat; /**< Character format of the virtual serial port, a value from the
-			                      *   CDCDevice_CDC_LineCodingFormats_t enum
-			                      */
-			uint8_t  ParityType; /**< Parity setting of the virtual serial port, a value from the
-			                      *   CDCDevice_LineCodingParity_t enum
-			                      */
-			uint8_t  DataBits; /**< Bits of data per character of the virtual serial port */
-		} CDC_Line_Coding_t;
-
 		/** Type define for a non-returning pointer to the start of the loaded application in flash memory. */
 		typedef void (*AppPtr_t)(void) ATTR_NO_RETURN;
 
-	/* Enums: */
-		/** Enum for the possible line encoding formats of a virtual serial port. */
-		enum CDCDevice_CDC_LineCodingFormats_t
-		{
-			OneStopBit          = 0, /**< Each frame contains one stop bit */
-			OneAndAHalfStopBits = 1, /**< Each frame contains one and a half stop bits */
-			TwoStopBits         = 2, /**< Each frame contains two stop bits */
-		};
-
-		/** Enum for the possible line encoding parity settings of a virtual serial port. */
-		enum CDCDevice_LineCodingParity_t
-		{
-			Parity_None         = 0, /**< No parity bit mode on each frame */
-			Parity_Odd          = 1, /**< Odd parity bit mode on each frame */
-			Parity_Even         = 2, /**< Even parity bit mode on each frame */
-			Parity_Mark         = 3, /**< Mark parity bit mode on each frame */
-			Parity_Space        = 4, /**< Space parity bit mode on each frame */
-		};
-
 	/* Function Prototypes: */
 		void CDC_Task(void);
 		void SetupHardware(void);

Bootloaders/DFU/BootloaderDFU.c

@@ -40,57 +40,57 @@
  *  other than erase. This is initially set to the value set by SECURE_MODE, and cleared by the bootloader
  *  once a memory erase has completed in a bootloader session.
  */
-bool IsSecure = SECURE_MODE;
+static bool IsSecure = SECURE_MODE;
 
 /** Flag to indicate if the bootloader should be running, or should exit and allow the application code to run
  *  via a soft reset. When cleared, the bootloader will abort, the USB interface will shut down and the application
  *  jumped to via an indirect jump to location 0x0000 (or other location specified by the host).
  */
-bool RunBootloader = true;
+static bool RunBootloader = true;
 
 /** Flag to indicate if the bootloader is waiting to exit. When the host requests the bootloader to exit and
  *  jump to the application address it specifies, it sends two sequential commands which must be properly
  *  acknowledged. Upon reception of the first the RunBootloader flag is cleared and the WaitForExit flag is set,
  *  causing the bootloader to wait for the final exit command before shutting down.
  */
-bool WaitForExit = false;
+static bool WaitForExit = false;
 
 /** Current DFU state machine state, one of the values in the DFU_State_t enum. */
-uint8_t DFU_State = dfuIDLE;
+static uint8_t DFU_State = dfuIDLE;
 
 /** Status code of the last executed DFU command. This is set to one of the values in the DFU_Status_t enum after
  *  each operation, and returned to the host when a Get Status DFU request is issued.
  */
-uint8_t DFU_Status = OK;
+static uint8_t DFU_Status = OK;
 
 /** Data containing the DFU command sent from the host. */
-DFU_Command_t SentCommand;
+static DFU_Command_t SentCommand;
 
 /** Response to the last issued Read Data DFU command. Unlike other DFU commands, the read command
  *  requires a single byte response from the bootloader containing the read data when the next DFU_UPLOAD command
  *  is issued by the host.
  */
-uint8_t ResponseByte;
+static uint8_t ResponseByte;
 
 /** Pointer to the start of the user application. By default this is 0x0000 (the reset vector), however the host
  *  may specify an alternate address when issuing the application soft-start command.
  */
-AppPtr_t AppStartPtr = (AppPtr_t)0x0000;
+static AppPtr_t AppStartPtr = (AppPtr_t)0x0000;
 
 /** 64-bit flash page number. This is concatenated with the current 16-bit address on USB AVRs containing more than
  *  64KB of flash memory.
  */
-uint8_t Flash64KBPage = 0;
+static uint8_t Flash64KBPage = 0;
 
 /** Memory start address, indicating the current address in the memory being addressed (either FLASH or EEPROM
  *  depending on the issued command from the host).
  */
-uint16_t StartAddr = 0x0000;
+static uint16_t StartAddr = 0x0000;
 
 /** Memory end address, indicating the end address to read to/write from in the memory being addressed (either FLASH
  *  of EEPROM depending on the issued command from the host).
  */
-uint16_t EndAddr = 0x0000;
+static uint16_t EndAddr = 0x0000;
 
 
 /** Main program entry point. This routine configures the hardware required by the bootloader, then continuously
@@ -180,7 +180,7 @@ void EVENT_USB_Device_ControlRequest(void)
 
 	switch (USB_ControlRequest.bRequest)
 	{
-		case REQ_DFU_DNLOAD:
+		case DFU_REQ_DNLOAD:
 			Endpoint_ClearSETUP();
 
 			/* Check if bootloader is waiting to terminate */
@@ -333,7 +333,7 @@ void EVENT_USB_Device_ControlRequest(void)
 			Endpoint_ClearStatusStage();
 
 			break;
-		case REQ_DFU_UPLOAD:
+		case DFU_REQ_UPLOAD:
 			Endpoint_ClearSETUP();
 
 			while (!(Endpoint_IsINReady()))
@@ -432,7 +432,7 @@ void EVENT_USB_Device_ControlRequest(void)
 
 			Endpoint_ClearStatusStage();
 			break;
-		case REQ_DFU_GETSTATUS:
+		case DFU_REQ_GETSTATUS:
 			Endpoint_ClearSETUP();
 
 			/* Write 8-bit status value */
@@ -452,7 +452,7 @@ void EVENT_USB_Device_ControlRequest(void)
 
 			Endpoint_ClearStatusStage();
 			break;
-		case REQ_DFU_CLRSTATUS:
+		case DFU_REQ_CLRSTATUS:
 			Endpoint_ClearSETUP();
 
 			/* Reset the status value variable to the default OK status */
@@ -460,7 +460,7 @@ void EVENT_USB_Device_ControlRequest(void)
 
 			Endpoint_ClearStatusStage();
 			break;
-		case REQ_DFU_GETSTATE:
+		case DFU_REQ_GETSTATE:
 			Endpoint_ClearSETUP();
 
 			/* Write the current device state to the endpoint */
@@ -470,7 +470,7 @@ void EVENT_USB_Device_ControlRequest(void)
 
 			Endpoint_ClearStatusStage();
 			break;
-		case REQ_DFU_ABORT:
+		case DFU_REQ_ABORT:
 			Endpoint_ClearSETUP();
 
 			/* Reset the current state variable to the default idle state */

Bootloaders/DFU/BootloaderDFU.h

@@ -103,25 +103,25 @@
 		#define DFU_FILLER_BYTES_SIZE    26
 
 		/** DFU class command request to detach from the host. */
-		#define REQ_DFU_DETATCH          0x00
+		#define DFU_REQ_DETATCH          0x00
 
 		/** DFU class command request to send data from the host to the bootloader. */
-		#define REQ_DFU_DNLOAD           0x01
+		#define DFU_REQ_DNLOAD           0x01
 
 		/** DFU class command request to send data from the bootloader to the host. */
-		#define REQ_DFU_UPLOAD           0x02
+		#define DFU_REQ_UPLOAD           0x02
 
 		/** DFU class command request to get the current DFU status and state from the bootloader. */
-		#define REQ_DFU_GETSTATUS        0x03
+		#define DFU_REQ_GETSTATUS        0x03
 
 		/** DFU class command request to reset the current DFU status and state variables to their defaults. */
-		#define REQ_DFU_CLRSTATUS        0x04
+		#define DFU_REQ_CLRSTATUS        0x04
 
 		/** DFU class command request to get the current DFU state of the bootloader. */
-		#define REQ_DFU_GETSTATE         0x05
+		#define DFU_REQ_GETSTATE         0x05
 
 		/** DFU class command request to abort the current multi-request transfer and return to the dfuIDLE state. */
-		#define REQ_DFU_ABORT            0x06
+		#define DFU_REQ_ABORT            0x06
 
 		/** DFU command to begin programming the device's memory. */
 		#define COMMAND_PROG_START       0x01

Bootloaders/HID/BootloaderHID.c

@@ -39,7 +39,7 @@
  *  via a soft reset. When cleared, the bootloader will abort, the USB interface will shut down and the application
  *  started via a forced watchdog reset.
  */
-bool RunBootloader = true;
+static bool RunBootloader = true;
 
 /** Main program entry point. This routine configures the hardware required by the bootloader, then continuously 
  *  runs the bootloader processing routine until instructed to soft-exit.
@@ -127,7 +127,7 @@ void EVENT_USB_Device_ControlRequest(void)
 				boot_spm_busy_wait();
 				
 				/* Write each of the FLASH page's bytes in sequence */
-				for (uint16_t PageByte = 0; PageByte < SPM_PAGESIZE; PageByte += 2)				
+				for (uint8_t PageWord = 0; PageWord < (SPM_PAGESIZE / 2); PageWord++)				
 				{
 					/* Check if endpoint is empty - if so clear it and wait until ready for next packet */
 					if (!(Endpoint_BytesInEndpoint()))
@@ -137,7 +137,7 @@ void EVENT_USB_Device_ControlRequest(void)
 					}
 
 					/* Write the next data word to the FLASH page */
-					boot_page_fill(PageAddress + PageByte, Endpoint_Read_Word_LE());
+					boot_page_fill(PageAddress + ((uint16_t)PageWord << 1), Endpoint_Read_Word_LE());
 				}
 
 				/* Write the filled FLASH page to memory */

Bootloaders/HID/BootloaderHID.txt

@@ -51,9 +51,10 @@
  *  from PJRC, used with permission. This bootloader is delibertely non-compatible with the properietary HalfKay
  *  bootloader GUI; only the command line interface software accompanying this bootloader will work with it.
  *  
- *  Out of the box this bootloader builds for the USB1287, and will fit into 4KB of bootloader space. If
- *  you wish to enlarge this space and/or change the AVR model, you will need to edit the BOOT_START and MCU
- *  values in the accompanying makefile.
+ *  Out of the box this bootloader builds for the USB1287, and will fit into 2KB of bootloader space for the
+ *  Series 2 USB AVRs (ATMEGAxxU2, AT90USBxx2) or 4KB of bootloader space for all other models. If you wish to
+ *  enlarge this space and/or change the AVR model, you will need to edit the BOOT_START and MCU values in the
+ *  accompanying makefile.
  *
  *  \section SSec_Options Project Options
  *

Bootloaders/HID/Descriptors.c

@@ -43,12 +43,12 @@
  *  the device will send, and what it may be sent back from the host. Refer to the HID specification for
  *  more details on HID report descriptors.
  */
-USB_Descriptor_HIDReport_Datatype_t HIDReport[] =
+const USB_Descriptor_HIDReport_Datatype_t HIDReport[] =
 {
-	HID_RI_USAGE_PAGE(16, 0xFF00), /* Vendor Page 1 */
-	HID_RI_USAGE(8, 0x01), /* Vendor Usage 1 */
+	HID_RI_USAGE_PAGE(16, 0xFFDC), /* Vendor Page 0xDC */
+	HID_RI_USAGE(8, 0xFB), /* Vendor Usage 0xFB */
 	HID_RI_COLLECTION(8, 0x01), /* Vendor Usage 1 */
-	    HID_RI_USAGE(8, 0x03), /* Vendor Usage 3 */
+	    HID_RI_USAGE(8, 0x02), /* Vendor Usage 2 */
 	    HID_RI_LOGICAL_MINIMUM(8, 0x00),
 	    HID_RI_LOGICAL_MAXIMUM(8, 0xFF),
 	    HID_RI_REPORT_SIZE(8, 0x08),
@@ -62,7 +62,7 @@ USB_Descriptor_HIDReport_Datatype_t HIDReport[] =
  *  number of device configurations. The descriptor is read out by the USB host when the enumeration
  *  process begins.
  */
-USB_Descriptor_Device_t DeviceDescriptor =
+const USB_Descriptor_Device_t DeviceDescriptor =
 {
 	.Header                 = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
 
@@ -89,7 +89,7 @@ USB_Descriptor_Device_t DeviceDescriptor =
  *  and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting
  *  a configuration so that the host may correctly communicate with the USB device.
  */
-USB_Descriptor_Configuration_t ConfigurationDescriptor =
+const USB_Descriptor_Configuration_t ConfigurationDescriptor =
 {
 	.Config = 
 		{
@@ -154,33 +154,23 @@ uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
                                     const uint8_t wIndex,
                                     const void** const DescriptorAddress)
 {
-	const uint8_t DescriptorType   = (wValue >> 8);
+	const uint8_t DescriptorType = (wValue >> 8);
 
 	const void* Address = NULL;
 	uint16_t    Size    = NO_DESCRIPTOR;
 	
-	/* If/Else If chain compiles slightly smaller than a switch case */
 	if (DescriptorType == DTYPE_Device)
-	{
-		Address = &DeviceDescriptor;
-		Size    = sizeof(USB_Descriptor_Device_t);	
-	}
+	  Address = &DeviceDescriptor;
 	else if (DescriptorType == DTYPE_Configuration)
-	{
-		Address = &ConfigurationDescriptor;
-		Size    = sizeof(USB_Descriptor_Configuration_t);	
-	}
+	  Address = &ConfigurationDescriptor;
 	else if (DescriptorType == HID_DTYPE_HID)
-	{
-		Address = &ConfigurationDescriptor.HID_VendorHID;
-		Size    = sizeof(USB_HID_Descriptor_HID_t);
-	}
+	  Address = &ConfigurationDescriptor.HID_VendorHID;
 	else
-	{
-		Address = &HIDReport;
-		Size    = sizeof(HIDReport);
-	}
+	  Address = &HIDReport;
 
+	if (Address != NULL)
+	  Size = (Address == &HIDReport) ? sizeof(HIDReport) : ((USB_Descriptor_Header_t*)Address)->Size;
+	
 	*DescriptorAddress = Address;
 	return Size;
 }

Bootloaders/HID/makefile

@@ -91,7 +91,7 @@ F_CLOCK = $(F_CPU)
 # Note that the bootloader size and start address given in AVRStudio is in words and not
 # bytes, and so will need to be doubled to obtain the byte address needed by AVR-GCC.
 FLASH_SIZE_KB        = 128
-BOOT_SECTION_SIZE_KB = 2
+BOOT_SECTION_SIZE_KB = 4
 BOOT_START           = 0x$(shell echo "obase=16; ($(FLASH_SIZE_KB) - $(BOOT_SECTION_SIZE_KB)) * 1024" | bc)
 
 
@@ -124,6 +124,7 @@ LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENAB
 LUFA_OPTS += -D NO_INTERNAL_SERIAL
 LUFA_OPTS += -D NO_DEVICE_SELF_POWER
 LUFA_OPTS += -D NO_DEVICE_REMOTE_WAKEUP
+LUFA_OPTS += -D NO_SOF_EVENTS
 
 
 # Create the LUFA source path variables by including the LUFA root makefile

Demos/Device/ClassDriver/AudioInput/AudioInput.c

@@ -51,6 +51,7 @@ USB_ClassInfo_Audio_Device_t Microphone_Audio_Interface =
 			},
 	};
 
+
 /** Main program entry point. This routine contains the overall program flow, including initial
  *  setup of all components and the main program loop.
  */

Demos/Device/ClassDriver/AudioOutput/AudioOutput.c

@@ -51,6 +51,7 @@ USB_ClassInfo_Audio_Device_t Speaker_Audio_Interface =
 			},
 	};
 
+
 /** Main program entry point. This routine contains the overall program flow, including initial
  *  setup of all components and the main program loop.
  */

Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c

@@ -86,6 +86,7 @@ USB_ClassInfo_CDC_Device_t VirtualSerial2_CDC_Interface =
 			},
 	};
 
+
 /** Main program entry point. This routine contains the overall program flow, including initial
  *  setup of all components and the main program loop.
  */

Demos/Device/ClassDriver/GenericHID/GenericHID.c

@@ -37,10 +37,10 @@
 #include "GenericHID.h"
 
 /** Buffer to hold the previously generated HID report, for comparison purposes inside the HID class driver. */
-uint8_t PrevHIDReportBuffer[GENERIC_REPORT_SIZE];
+static uint8_t PrevHIDReportBuffer[GENERIC_REPORT_SIZE];
 
 /** Structure to contain reports from the host, so that they can be echoed back upon request */
-struct
+static struct
 {
 	uint8_t  ReportID;
 	uint16_t ReportSize;
@@ -66,6 +66,7 @@ USB_ClassInfo_HID_Device_t Generic_HID_Interface =
 			},
 	};
 
+
 /** Main program entry point. This routine contains the overall program flow, including initial
  *  setup of all components and the main program loop.
  */

Demos/Device/ClassDriver/Joystick/Joystick.c

@@ -37,7 +37,7 @@
 #include "Joystick.h"
 
 /** Buffer to hold the previously generated HID report, for comparison purposes inside the HID class driver. */
-uint8_t PrevJoystickHIDReportBuffer[sizeof(USB_JoystickReport_Data_t)];
+static uint8_t PrevJoystickHIDReportBuffer[sizeof(USB_JoystickReport_Data_t)];
 
 /** LUFA HID Class driver interface configuration and state information. This structure is
  *  passed to all HID Class driver functions, so that multiple instances of the same class
@@ -58,6 +58,7 @@ USB_ClassInfo_HID_Device_t Joystick_HID_Interface =
 			},
 	};
 
+
 /** Main program entry point. This routine contains the overall program flow, including initial
  *  setup of all components and the main program loop.
  */

Demos/Device/ClassDriver/Keyboard/Keyboard.c

@@ -37,7 +37,7 @@
 #include "Keyboard.h"
 
 /** Buffer to hold the previously generated Keyboard HID report, for comparison purposes inside the HID class driver. */
-uint8_t PrevKeyboardHIDReportBuffer[sizeof(USB_KeyboardReport_Data_t)];
+static uint8_t PrevKeyboardHIDReportBuffer[sizeof(USB_KeyboardReport_Data_t)];
 
 /** LUFA HID Class driver interface configuration and state information. This structure is
  *  passed to all HID Class driver functions, so that multiple instances of the same class
@@ -58,6 +58,7 @@ USB_ClassInfo_HID_Device_t Keyboard_HID_Interface =
 			},
     };
 
+
 /** Main program entry point. This routine contains the overall program flow, including initial
  *  setup of all components and the main program loop.
  */

Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c

@@ -37,10 +37,10 @@
 #include "KeyboardMouse.h"
 
 /** Buffer to hold the previously generated Keyboard HID report, for comparison purposes inside the HID class driver. */
-uint8_t PrevKeyboardHIDReportBuffer[sizeof(USB_KeyboardReport_Data_t)];
+static uint8_t PrevKeyboardHIDReportBuffer[sizeof(USB_KeyboardReport_Data_t)];
 
 /** Buffer to hold the previously generated Mouse HID report, for comparison purposes inside the HID class driver. */
-uint8_t PrevMouseHIDReportBuffer[sizeof(USB_MouseReport_Data_t)];
+static uint8_t PrevMouseHIDReportBuffer[sizeof(USB_MouseReport_Data_t)];
 
 /** LUFA HID Class driver interface configuration and state information. This structure is
  *  passed to all HID Class driver functions, so that multiple instances of the same class
@@ -81,6 +81,7 @@ USB_ClassInfo_HID_Device_t Mouse_HID_Interface =
 			},
 	};
 
+
 /** Main program entry point. This routine contains the overall program flow, including initial
  *  setup of all components and the main program loop.
  */

Demos/Device/ClassDriver/KeyboardMouseMultiReport/KeyboardMouseMultiReport.c

@@ -37,7 +37,7 @@
 #include "KeyboardMouseMultiReport.h"
 
 /** Buffer to hold the previously generated HID report, for comparison purposes inside the HID class driver. */
-uint8_t PrevHIDReportBuffer[MAX(sizeof(USB_KeyboardReport_Data_t), sizeof(USB_MouseReport_Data_t))];
+static uint8_t PrevHIDReportBuffer[MAX(sizeof(USB_KeyboardReport_Data_t), sizeof(USB_MouseReport_Data_t))];
 
 /** LUFA HID Class driver interface configuration and state information. This structure is
  *  passed to all HID Class driver functions, so that multiple instances of the same class
@@ -58,6 +58,7 @@ USB_ClassInfo_HID_Device_t Device_HID_Interface =
 			},
 	};
 
+
 /** Main program entry point. This routine contains the overall program flow, including initial
  *  setup of all components and the main program loop.
  */

Demos/Device/ClassDriver/MIDI/MIDI.c

@@ -56,6 +56,7 @@ USB_ClassInfo_MIDI_Device_t Keyboard_MIDI_Interface =
 			},
 	};
 
+
 /** Main program entry point. This routine contains the overall program flow, including initial
  *  setup of all components and the main program loop.
  */

Demos/Device/ClassDriver/MassStorage/Lib/SCSI.c

@@ -41,7 +41,7 @@
 /** Structure to hold the SCSI response data to a SCSI INQUIRY command. This gives information about the device's
  *  features and capabilities.
  */
-SCSI_Inquiry_Response_t InquiryData =
+static const SCSI_Inquiry_Response_t InquiryData =
 	{
 		.DeviceType          = DEVICE_TYPE_BLOCK,
 		.PeripheralQualifier = 0,
@@ -73,7 +73,7 @@ SCSI_Inquiry_Response_t InquiryData =
 /** Structure to hold the sense data for the last issued SCSI command, which is returned to the host after a SCSI REQUEST SENSE
  *  command is issued. This gives information on exactly why the last command failed to complete.
  */
-SCSI_Request_Sense_Response_t SenseData =
+static SCSI_Request_Sense_Response_t SenseData =
 	{
 		.ResponseCode        = 0x70,
 		.AdditionalLength    = 0x0A,

Demos/Device/ClassDriver/MassStorage/MassStorage.c

@@ -58,6 +58,7 @@ USB_ClassInfo_MS_Device_t Disk_MS_Interface =
 			},
 	};
 
+
 /** Main program entry point. This routine contains the overall program flow, including initial
  *  setup of all components and the main program loop.
  */

Demos/Device/ClassDriver/MassStorageKeyboard/Lib/SCSI.c

@@ -41,7 +41,7 @@
 /** Structure to hold the SCSI response data to a SCSI INQUIRY command. This gives information about the device's
  *  features and capabilities.
  */
-SCSI_Inquiry_Response_t InquiryData =
+static const SCSI_Inquiry_Response_t InquiryData =
 	{
 		.DeviceType          = DEVICE_TYPE_BLOCK,
 		.PeripheralQualifier = 0,
@@ -73,7 +73,7 @@ SCSI_Inquiry_Response_t InquiryData =
 /** Structure to hold the sense data for the last issued SCSI command, which is returned to the host after a SCSI REQUEST SENSE
  *  command is issued. This gives information on exactly why the last command failed to complete.
  */
-SCSI_Request_Sense_Response_t SenseData =
+static SCSI_Request_Sense_Response_t SenseData =
 	{
 		.ResponseCode        = 0x70,
 		.AdditionalLength    = 0x0A,

Demos/Device/ClassDriver/MassStorageKeyboard/MassStorageKeyboard.c

@@ -60,7 +60,7 @@ USB_ClassInfo_MS_Device_t Disk_MS_Interface =
 	};
 
 /** Buffer to hold the previously generated Keyboard HID report, for comparison purposes inside the HID class driver. */
-uint8_t PrevKeyboardHIDReportBuffer[sizeof(USB_KeyboardReport_Data_t)];
+static uint8_t PrevKeyboardHIDReportBuffer[sizeof(USB_KeyboardReport_Data_t)];
 
 /** LUFA HID Class driver interface configuration and state information. This structure is
  *  passed to all HID Class driver functions, so that multiple instances of the same class

Demos/Device/ClassDriver/Mouse/Mouse.c

@@ -37,7 +37,7 @@
 #include "Mouse.h"
 
 /** Buffer to hold the previously generated Mouse HID report, for comparison purposes inside the HID class driver. */
-uint8_t PrevMouseHIDReportBuffer[sizeof(USB_MouseReport_Data_t)];
+static uint8_t PrevMouseHIDReportBuffer[sizeof(USB_MouseReport_Data_t)];
 
 /** LUFA HID Class driver interface configuration and state information. This structure is
  *  passed to all HID Class driver functions, so that multiple instances of the same class
@@ -58,6 +58,7 @@ USB_ClassInfo_HID_Device_t Mouse_HID_Interface =
 			},
 	};
 
+
 /** Main program entry point. This routine contains the overall program flow, including initial
  *  setup of all components and the main program loop.
  */

Demos/Device/ClassDriver/RNDISEthernet/RNDISEthernet.c

@@ -63,6 +63,7 @@ USB_ClassInfo_RNDIS_Device_t Ethernet_RNDIS_Interface =