Hey,
referring to my previous thread in https://devzone.nordicsemi.com/f/nordic-q-a/44298/running-usbd_hid_generic-in-nrf52832-using-a-custom-usb-module-mcp2200. so am using nRF52832 with SDK15.2, Now I would like to simply send my buffer values to the Tx pin of the UART in

which is in mouse_movement_send function
am not sure which function should I use to take take the value of the buffers. is it nrf_uarte_tx_buffer_set in nrf_uarte.h?

or is it somewhere in app_uart_fifo.c?
I have a chip that converts UART data to USB so that part is taking care of.
Help is very much appreciated,
Maher