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authorJack Humbert <jack.humb@gmail.com>2017-11-17 11:53:46 -0500
committerGitHub <noreply@github.com>2017-11-17 11:53:46 -0500
commitf5a9758cea0cf65e4c4270aa55738e423213b82c (patch)
tree97a65d36de7418a15bc2dc8de196defce80fc099
parentf07e2cdd9df32fc26495bff37369cf5f6c13e23f (diff)
Adds serial number string to USB descriptors (#1996)
* add serial number string to usb descriptors

* better name for serial number
-rw-r--r--tmk_core/protocol/lufa/descriptor.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/tmk_core/protocol/lufa/descriptor.c b/tmk_core/protocol/lufa/descriptor.c
index 357954368b..e9f7f87308 100644
--- a/tmk_core/protocol/lufa/descriptor.c
+++ b/tmk_core/protocol/lufa/descriptor.c
@@ -275,7 +275,7 @@ const USB_Descriptor_Device_t PROGMEM DeviceDescriptor =
 
     .ManufacturerStrIndex   = 0x01,
     .ProductStrIndex        = 0x02,
-    .SerialNumStrIndex      = NO_DESCRIPTOR,
+    .SerialNumStrIndex      = 0x03,
 
     .NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS
 };
@@ -860,6 +860,18 @@ const USB_Descriptor_String_t PROGMEM ProductString =
     .UnicodeString          = LSTR(PRODUCT)
 };
 
+#ifndef SERIAL_NUMBER
+    #define SERIAL_NUMBER 0
+#endif
+
+const USB_Descriptor_String_t PROGMEM SerialNumberString =
+{
+    /* subtract 1 for null terminator */
+    .Header                 = {.Size = USB_STRING_LEN(sizeof(STR(SERIAL_NUMBER))-1), .Type = DTYPE_String},
+
+    .UnicodeString          = LSTR(SERIAL_NUMBER)
+};
+
 
 /** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors"
  *  documentation) by the application code so that the address and size of a requested descriptor can be given
@@ -902,6 +914,10 @@ uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
                     Address = &ProductString;
                     Size    = pgm_read_byte(&ProductString.Header.Size);
                     break;
+                case 0x03:
+                    Address = &SerialNumberString;
+                    Size    = pgm_read_byte(&SerialNumberString.Header.Size);
+                    break;
             }
             break;
         case HID_DTYPE_HID: