added the string descriptors to the descriptor set so that when you plug in the device it can actually report "LeafLabs Maple R3"

2 files changed, 49 insertions, 2 deletions

diff --git a/core/usb/descriptors.c b/core/usb/descriptors.c
index eca3f3f..522b8d6 100644
--- a/core/usb/descriptors.c
+++ b/core/usb/descriptors.c
@@ -1,5 +1,6 @@
 /* insert license */
 
+
 #include "descriptors.h"
 
 USB_Descriptor_Device usbVcomDescriptor_Device = {
@@ -118,5 +119,43 @@ USB_Descriptor_Configuration usbVcomDescriptor_Config = {
    bmAttributes:          EP_TYPE_BULK,
    wMaxPacketSize:        VCOM_TX_EPSIZE,
    bInterval:             0x00
-   },
+   }
 };
+
+/* 
+   String Identifiers:
+
+   we may choose to specify any or none of the following string
+   identifiers:
+  
+   iManufacturer:    LeafLabs
+   iProduct:         Maple R3
+   iSerialNumber:    NONE
+   iConfiguration:   NONE
+   iInterface(CCI):  NONE
+   iInterface(DCI):  NONE
+
+   additionally we must provide the unicode language identifier,
+   which is 0x0409 for US English
+*/
+
+USB_Descriptor_String usbVcomDescriptor_LangID = 
+  {
+  bLength: USB_DESCRIPTOR_STRING_LEN(1),
+  bDescriptorType: USB_DESCRIPTOR_TYPE_STRING,
+  bString: 0x0409
+  };
+
+USB_Descriptor_String usbVcomDescriptor_iManufacturer = 
+  {
+  bLength: USB_DESCRIPTOR_STRING_LEN(8),
+  bDescriptorType: USB_DESCRIPTOR_TYPE_STRING,
+  bString: L"LeafLabs"
+  };
+
+USB_Descriptor_String usbVcomDescriptor_iProduct = 
+  {
+  bLength: USB_DESCRIPTOR_STRING_LEN(8),
+  bDescriptorType: USB_DESCRIPTOR_TYPE_STRING,
+  bString: L"Maple R3"
+  };
diff --git a/core/usb/descriptors.h b/core/usb/descriptors.h
index 1463221..1beabcc 100644
--- a/core/usb/descriptors.h
+++ b/core/usb/descriptors.h
@@ -18,6 +18,8 @@
     uint8 Data[DataSize];			\
   }
 
+#define USB_DESCRIPTOR_STRING_LEN(x) (2 + (x << 1))
+
 typedef struct {
   uint8                 bLength;
   uint8                 bDescriptorType;
@@ -78,7 +80,13 @@ typedef struct {
   USB_Descriptor_Interface            DCI_Interface;
   USB_Descriptor_Endpoint             DataOutEndpoint;
   USB_Descriptor_Endpoint             DataInEndpoint;
-} USB_Descriptor_Configuration;
+}USB_Descriptor_Configuration;
+ 
+typedef struct {
+  uint8          bLength;
+  uint8          bDescriptorType;
+  uint16         bString[];
+} USB_Descriptor_String;
 
 
 #if defined(__cplusplus)