* number of device configurations. The descriptor is read out by the USB host when the enumeration
* process begins.
*/
-USB_Descriptor_Device_t DeviceDescriptor =
+const USB_Descriptor_Device_t DeviceDescriptor =
{
.Header = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
* and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting
* a configuration so that the host may correctly communicate with the USB device.
*/
-USB_Descriptor_Configuration_t ConfigurationDescriptor =
+const USB_Descriptor_Configuration_t ConfigurationDescriptor =
{
.Config =
{
- .Header = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration},
+ .Header = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration},
- .TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t),
- .TotalInterfaces = 1,
+ .TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t),
+ .TotalInterfaces = 1,
- .ConfigurationNumber = 1,
- .ConfigurationStrIndex = NO_DESCRIPTOR,
+ .ConfigurationNumber = 1,
+ .ConfigurationStrIndex = NO_DESCRIPTOR,
- .ConfigAttributes = USB_CONFIG_ATTR_BUSPOWERED,
+ .ConfigAttributes = USB_CONFIG_ATTR_BUSPOWERED,
- .MaxPowerConsumption = USB_CONFIG_POWER_MA(100)
+ .MaxPowerConsumption = USB_CONFIG_POWER_MA(100)
},
.DFU_Interface =
* the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate
* via the language ID table available at USB.org what languages the device supports for its string descriptors.
*/
-USB_Descriptor_String_t LanguageString =
+const USB_Descriptor_String_t LanguageString =
{
.Header = {.Size = USB_STRING_LEN(1), .Type = DTYPE_String},
* and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
* Descriptor.
*/
-USB_Descriptor_String_t ProductString =
+const USB_Descriptor_String_t ProductString =
{
.Header = {.Size = USB_STRING_LEN(18), .Type = DTYPE_String},
Address = &DeviceDescriptor;
Size = sizeof(USB_Descriptor_Device_t);
break;
- case DTYPE_Configuration:
+ case DTYPE_Configuration:
Address = &ConfigurationDescriptor;
Size = sizeof(USB_Descriptor_Configuration_t);
break;
- case DTYPE_String:
+ case DTYPE_String:
if (!(DescriptorNumber))
{
Address = &LanguageString;
Address = &ProductString;
Size = ProductString.Header.Size;
}
-
+
break;
}
-
+
*DescriptorAddress = Address;
return Size;
}