From b5ca3990c2ec9dc240fb334002ed2f7c82eea853 Mon Sep 17 00:00:00 2001
From: Dean Camera <dean@fourwalledcubicle.com>
Date: Tue, 16 Jun 2009 04:20:21 +0000
Subject: Added new USB_Host_SetDeviceConfiguration() convenience function.
 Change over Low Level host demos to use the new routine.

---
 LUFA/Drivers/USB/LowLevel/Host.c | 17 +++++++++++++++++
 LUFA/Drivers/USB/LowLevel/Host.h | 13 +++++++++++++
 2 files changed, 30 insertions(+)

(limited to 'LUFA/Drivers/USB')

diff --git a/LUFA/Drivers/USB/LowLevel/Host.c b/LUFA/Drivers/USB/LowLevel/Host.c
index 5f3eeb8e8..c059b43ac 100644
--- a/LUFA/Drivers/USB/LowLevel/Host.c
+++ b/LUFA/Drivers/USB/LowLevel/Host.c
@@ -285,4 +285,21 @@ static void USB_Host_ResetDevice(void)
 
 	USB_INT_Enable(USB_INT_DDISCI);
 }
+
+uint8_t USB_Host_SetDeviceConfiguration(uint8_t ConfigNumber)
+{
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),
+			.bRequest      = REQ_SetConfiguration,
+			.wValue        = ConfigNumber,
+			.wIndex        = 0,
+			.wLength       = 0,
+		};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+	
+	return USB_Host_SendControlRequest(NULL);
+}
+
 #endif
diff --git a/LUFA/Drivers/USB/LowLevel/Host.h b/LUFA/Drivers/USB/LowLevel/Host.h
index 911b41bd9..7130c7579 100644
--- a/LUFA/Drivers/USB/LowLevel/Host.h
+++ b/LUFA/Drivers/USB/LowLevel/Host.h
@@ -173,6 +173,19 @@
 				#define USB_Host_IsResumeFromWakeupRequestSent() ((UHCON &   (1 << RESUME)) ? false : true)
 			#endif
 
+		/* Function Prototypes: */
+			/** Convenience function. This routine sends a SetConfiguration standard request to the attached
+			 *  device, with the given configuration index. This can be used to easily set the device
+			 *  configuration without creating and sending the request manually.
+			 *
+			 *  \note After this routine returns, the control pipe will be selected.
+			 *
+			 *  \param ConfigNumber  Configuration index to send to the device
+			 *
+			 *  \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.
+			 */
+			uint8_t USB_Host_SetDeviceConfiguration(uint8_t ConfigNumber);
+
 		/* Enums: */
 			/** Enum for the various states of the USB Host state machine. Only some states are
 			 *  implemented in the LUFA library - other states are left to the user to implement.
-- 
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