From e915d968a5bdb8619c465b94d21a3801446a6539 Mon Sep 17 00:00:00 2001
From: Dean Camera <dean@fourwalledcubicle.com>
Date: Thu, 24 Nov 2011 11:33:10 +0000
Subject: Added new USB_Host_GetDeviceConfiguration() and
 USB_Host_GetInterfaceAltSetting() functions.

---
 LUFA/Drivers/USB/Core/HostStandardReq.c | 35 ++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

(limited to 'LUFA/Drivers/USB/Core/HostStandardReq.c')

diff --git a/LUFA/Drivers/USB/Core/HostStandardReq.c b/LUFA/Drivers/USB/Core/HostStandardReq.c
index ee5d8cb42..d7e7e3eba 100644
--- a/LUFA/Drivers/USB/Core/HostStandardReq.c
+++ b/LUFA/Drivers/USB/Core/HostStandardReq.c
@@ -211,6 +211,22 @@ uint8_t USB_Host_SetDeviceConfiguration(const uint8_t ConfigNumber)
 	return ErrorCode;
 }
 
+uint8_t USB_Host_GetDeviceConfiguration(uint8_t* const ConfigNumber)
+{
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
+			.bRequest      = REQ_GetConfiguration,
+			.wValue        = 0,
+			.wIndex        = 0,
+			.wLength       = sizeof(uint8_t),
+		};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+	return USB_Host_SendControlRequest(ConfigNumber);
+}
+
 uint8_t USB_Host_GetDeviceDescriptor(void* const DeviceDescriptorPtr)
 {
 	USB_ControlRequest = (USB_Request_Header_t)
@@ -235,7 +251,7 @@ uint8_t USB_Host_GetDeviceStringDescriptor(const uint8_t Index,
 		{
 			.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
 			.bRequest      = REQ_GetDescriptor,
-			.wValue        = (DTYPE_String << 8) | Index,
+			.wValue        = ((DTYPE_String << 8) | Index),
 			.wIndex        = 0,
 			.wLength       = BufferLength,
 		};
@@ -294,5 +310,22 @@ uint8_t USB_Host_SetInterfaceAltSetting(const uint8_t InterfaceIndex,
 	return USB_Host_SendControlRequest(NULL);
 }
 
+uint8_t USB_Host_GetInterfaceAltSetting(const uint8_t InterfaceIndex,
+                                        uint8_t* const AltSetting)
+{
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_INTERFACE),
+			.bRequest      = REQ_GetInterface,
+			.wValue        = 0,
+			.wIndex        = InterfaceIndex,
+			.wLength       = sizeof(uint8_t),
+		};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+	return USB_Host_SendControlRequest(AltSetting);
+}
+
 #endif
 
-- 
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