X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/7f9f97c792dee6875fbca9806422bdd7d6c5a657..a4ebf4e92061bf1eec9224e64bc823ca7bedada4:/Demos/Device/ClassDriver/MassStorageKeyboard/Descriptors.c?ds=sidebyside

diff --git a/Demos/Device/ClassDriver/MassStorageKeyboard/Descriptors.c b/Demos/Device/ClassDriver/MassStorageKeyboard/Descriptors.c
index 1deda8e02..e8523f460 100644
--- a/Demos/Device/ClassDriver/MassStorageKeyboard/Descriptors.c
+++ b/Demos/Device/ClassDriver/MassStorageKeyboard/Descriptors.c
@@ -38,6 +38,18 @@
 
 #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
+
 /** HID class report descriptor. This is a special descriptor constructed with values from the
  *  USBIF HID class specification to describe the reports and capabilities of the HID device. This
  *  descriptor is parsed by the host and its contents used to determine what data (and in what encoding)
@@ -129,7 +141,7 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 			.MaxPowerConsumption    = USB_CONFIG_POWER_MA(100)
 		},
 		
-	.Interface = 
+	.MassStorageInterface = 
 		{
 			.Header                 = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
 
@@ -145,7 +157,7 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 			.InterfaceStrIndex      = NO_DESCRIPTOR
 		},
 
-	.DataInEndpoint = 
+	.MassStorageDataInEndpoint = 
 		{
 			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
 
@@ -155,7 +167,7 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 			.PollingIntervalMS      = 0x00
 		},
 
-	.DataOutEndpoint = 
+	.MassStorageDataOutEndpoint = 
 		{
 			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
 
@@ -169,8 +181,8 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 		{
 			.Header                 = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
 
-			.InterfaceNumber        = 0x01,
-			.AlternateSetting       = 0x00,
+			.InterfaceNumber        = 1,
+			.AlternateSetting       = 0,
 			
 			.TotalEndpoints         = 1,
 				
@@ -181,8 +193,6 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 			.InterfaceStrIndex      = NO_DESCRIPTOR
 		},
 
-
-
 	.KeyboardHID = 
 		{  
 			.Header                 = {.Size = sizeof(USB_HID_Descriptor_t), .Type = DTYPE_HID},