nRF52840 only: USB DFU trigger library is used to enter the bootloader and read the firmware version. More...

Modules
	USB DFU Trigger library configuration

Functions
ret_code_t	nrf_dfu_trigger_usb_init (void)
	Function for initializing the USB DFU trigger library. More...

Detailed Description

nRF52840 only: USB DFU trigger library is used to enter the bootloader and read the firmware version.

See DFU Trigger Library (USB) for additional documentation.

Function Documentation

ret_code_t nrf_dfu_trigger_usb_init ( void )

Function for initializing the USB DFU trigger library.

Note: If the USB is also used for other purposes, then this function must be called after USB is initialized but before it is enabled. In this case, the configuration flag NRF_DFU_TRIGGER_USB_USB_SHARED must be set to 1.; Calling this again after the first success has no effect and returns NRF_SUCCESS .; If APP_USBD_CONFIG_EVENT_QUEUE_ENABLE is on (1), USB events must be handled manually. See app_usbd_event_queue_process .

Return values

NRF_SUCCESS On successful initialization.