Fixed LowLevel PrinterHost demo not sending control requests to the attached printer with the correct printer interface wIndex value.

Demos/Device/LowLevel/DualVirtualSerial/DualVirtualSerial.c

@@ -153,7 +153,7 @@ void EVENT_USB_Device_ConfigurationChanged(void)
 void EVENT_USB_Device_UnhandledControlRequest(void)
 {
 	/* Determine which interface's Line Coding data is being set from the wIndex parameter */
-	uint8_t* LineEncodingData = (USB_ControlRequest.wIndex == 0) ? (uint8_t*)&LineEncoding1 : (uint8_t*)&LineEncoding2;
+	void* LineEncodingData = (USB_ControlRequest.wIndex == 0) ? &LineEncoding1 : &LineEncoding2;
 
 	/* Process CDC specific control requests */
 	switch (USB_ControlRequest.bRequest)

Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.c

@@ -86,7 +86,7 @@ uint8_t Printer_GetDeviceID(char* DeviceIDString,
 			.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
 			.bRequest      = REQ_GetDeviceID,
 			.wValue        = 0,
-			.wIndex        = 0,
+			.wIndex        = PrinterInterfaceNumber,
 			.wLength       = sizeof(DeviceIDStringLength),
 		};
 		
@@ -130,11 +130,11 @@ uint8_t Printer_GetPortStatus(uint8_t* const PortStatus)
 {
 	USB_ControlRequest = (USB_Request_Header_t)
 		{
-			bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
-			bRequest:      REQ_GetPortStatus,
-			wValue:        0,
-			wIndex:        0,
-			wLength:       sizeof(uint8_t),
+			.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
+			.bRequest      = REQ_GetPortStatus,
+			.wValue        = 0,
+			.wIndex        = PrinterInterfaceNumber,
+			.wLength       = sizeof(uint8_t),
 		};
 
 	Pipe_SelectPipe(PIPE_CONTROLPIPE);
@@ -154,7 +154,7 @@ uint8_t Printer_SoftReset(void)
 			.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
 			.bRequest      = REQ_SoftReset,
 			.wValue        = 0,
-			.wIndex        = 0,
+			.wIndex        = PrinterInterfaceNumber,
 			.wLength       = 0,
 		};
 

Demos/Host/LowLevel/PrinterHost/Lib/PrinterCommands.h

@@ -41,6 +41,8 @@
 		#include <string.h>
 
 		#include <LUFA/Drivers/USB/USB.h>
+		
+		#include "../PrinterHost.h"
 
 	/* Macros: */
 		/** Printer class-specific request to retrieve the printer's ID string. */

Demos/Host/LowLevel/PrinterHost/PrinterHost.h

@@ -70,6 +70,9 @@
 		/** LED mask for the library LED driver, to indicate that the USB interface is busy. */
 		#define LEDMASK_USB_BUSY          LEDS_LED2
 	
+	/* External Variables: */
+		extern uint8_t PrinterInterfaceNumber;
+	
 	/* Function Prototypes: */
 		void EVENT_USB_Host_DeviceAttached(void);
 		void EVENT_USB_Host_DeviceUnattached(void);