4.4.8.3.6 USB_SETUP_STRING_CALLBACK_t
typedef RETURN_CODE_t(* USB_SETUP_STRING_CALLBACK_t) (uint8_t stringIndex, uint16_t langID, uint8_t **descriptorAddressPtr, uint16_t *descriptorLength)
Function callback type USB_SETUP_STRING_CALLBACK_t. Callback type used for setup request processing a string descriptor, with a return code to let the stack know to proceed.
| stringIndex |
- Specifies which string of device information is requested |
| langID |
- Which language the string requested must be in |
| **descriptorAddressPtr |
- Pointer to write string descriptor address to |
| *descriptorLength |
- pointer to the size of the descriptor |
SUCCESS or an Error code according to RETURN_CODE_t |