X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/6f4cc344ab47b720651e5bbf7674951c32e210b1..fa1a092901319b3b41bf09e0c4cb9cbbec470d6b:/Demos/Device/ClassDriver/MassStorage/Descriptors.c

diff --git a/Demos/Device/ClassDriver/MassStorage/Descriptors.c b/Demos/Device/ClassDriver/MassStorage/Descriptors.c
index bb27f2bc6..856d408ca 100644
--- a/Demos/Device/ClassDriver/MassStorage/Descriptors.c
+++ b/Demos/Device/ClassDriver/MassStorage/Descriptors.c
@@ -1,21 +1,21 @@
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2009.
+     Copyright (C) Dean Camera, 2010.
               
   dean [at] fourwalledcubicle [dot] com
       www.fourwalledcubicle.com
 */
 
 /*
-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
-
-  Permission to use, copy, modify, and distribute this software
-  and its documentation for any purpose and without fee is hereby
-  granted, provided that the above copyright notice appear in all
-  copies and that both that the copyright notice and this
-  permission notice and warranty disclaimer appear in supporting
-  documentation, and that the name of the author not be used in
-  advertising or publicity pertaining to distribution of the
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this 
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in 
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting 
+  documentation, and that the name of the author not be used in 
+  advertising or publicity pertaining to distribution of the 
   software without specific, written prior permission.
 
   The author disclaim all warranties with regard to this
@@ -37,6 +37,18 @@
 
 #include "Descriptors.h"
 
+/* On some devices, there is a factory set internal serial number which can be automatically sent to the host as
+ * the device's serial number when the Device Descriptor's .SerialNumStrIndex entry is set to USE_INTERNAL_SERIAL.
+ * This allows the host to track a device across insertions on different ports, allowing them to retain allocated
+ * resources like COM port numbers and drivers. On demos using this feature, give a warning on unsupported devices
+ * so that the user can supply their own serial number descriptor instead or remove the USE_INTERNAL_SERIAL value
+ * from the Device Descriptor (forcing the host to generate a serial number for each device from the VID, PID and
+ * port location).
+ */
+#if (USE_INTERNAL_SERIAL == NO_DESCRIPTOR)
+	#warning USE_INTERNAL_SERIAL is not available on this AVR - please manually construct a device serial descriptor.
+#endif
+
 /** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall
  *  device characteristics, including the supported USB version, control endpoint size and the
  *  number of device configurations. The descriptor is read out by the USB host when the enumeration
@@ -86,7 +98,7 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 			.MaxPowerConsumption    = USB_CONFIG_POWER_MA(100)
 		},
 		
-	.Interface = 
+	.MS_Interface = 
 		{
 			.Header                 = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
 
@@ -102,22 +114,22 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 			.InterfaceStrIndex      = NO_DESCRIPTOR
 		},
 
-	.DataInEndpoint = 
+	.MS_DataInEndpoint = 
 		{
 			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
 
 			.EndpointAddress        = (ENDPOINT_DESCRIPTOR_DIR_IN | MASS_STORAGE_IN_EPNUM),
-			.Attributes             = EP_TYPE_BULK,
+			.Attributes             = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
 			.EndpointSize           = MASS_STORAGE_IO_EPSIZE,
 			.PollingIntervalMS      = 0x00
 		},
 
-	.DataOutEndpoint = 
+	.MS_DataOutEndpoint = 
 		{
 			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
 
 			.EndpointAddress        = (ENDPOINT_DESCRIPTOR_DIR_OUT | MASS_STORAGE_OUT_EPNUM),
-			.Attributes             = EP_TYPE_BULK,
+			.Attributes             = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
 			.EndpointSize           = MASS_STORAGE_IO_EPSIZE,
 			.PollingIntervalMS      = 0x00
 		}