From c86491af8b24679984a3fc5effc7675779652e4c Mon Sep 17 00:00:00 2001
From: Dean Camera <dean@fourwalledcubicle.com>
Date: Tue, 11 Aug 2009 09:12:29 +0000
Subject: Add new functions to the HID host class driver, refine HID interface
 protocol matching.

Remove stray state variable from the CDC host class driver.
---
 LUFA/Drivers/USB/Class/Host/HID.c | 33 ++++++++++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)

(limited to 'LUFA/Drivers/USB/Class/Host/HID.c')

diff --git a/LUFA/Drivers/USB/Class/Host/HID.c b/LUFA/Drivers/USB/Class/Host/HID.c
index a42f8afa3..dc6997736 100644
--- a/LUFA/Drivers/USB/Class/Host/HID.c
+++ b/LUFA/Drivers/USB/Class/Host/HID.c
@@ -46,6 +46,8 @@ uint8_t HID_Host_ConfigurePipes(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo, uint
 	if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
 	  return HID_ENUMERROR_InvalidConfigDescriptor;
 	
+	USB_Descriptor_Interface_t* CurrentHIDInterface;
+	
 	do
 	{
 		if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
@@ -53,9 +55,18 @@ uint8_t HID_Host_ConfigurePipes(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo, uint
 		{
 			return HID_ENUMERROR_NoHIDInterfaceFound;
 		}
-	} while (HIDInterfaceInfo->Config.MatchInterfaceProtocol &&
-	         DESCRIPTOR_PCAST(ConfigDescriptorData,
-	                          USB_Descriptor_Interface_t)->Protocol != HIDInterfaceInfo->Config.HIDInterfaceProtocol);
+		
+		CurrentHIDInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
+	} while (HIDInterfaceInfo->Config.HIDInterfaceProtocol &&
+	         (CurrentHIDInterface->Protocol != HIDInterfaceInfo->Config.HIDInterfaceProtocol));
+
+	HIDInterfaceInfo->State.InterfaceNumber	     =
+	#if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES)
+	                     CurrentHIDInterface->InterfaceNumber;
+	#else
+	                     CurrentHIDInterface->bInterfaceNumber;
+	#endif
+	HIDInterfaceInfo->State.SupportsBootSubClass = (CurrentHIDInterface->SubClass != 0);
 
 	while (FoundEndpoints != ((1 << HID_FOUND_DATAPIPE_IN) | (1 << HID_FOUND_DATAPIPE_OUT)))
 	{
@@ -144,4 +155,20 @@ bool HID_Host_IsReportReceived(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo)
 	return ReportReceived;
 }
 
+uint8_t USB_HID_Host_SetProtocol(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo, bool UseReportProtocol)
+{
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
+			.bRequest      = REQ_SetProtocol,
+			.wValue        = UseReportProtocol,
+			.wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
+			.wLength       = 0,
+		};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+	
+	return USB_Host_SendControlRequest(NULL);
+}
+
 #endif
-- 
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