Change Arduino display name (Optiboot)

hi everyone:)

i new arduino
i want change arduino name in device display in windows or linux device listing! jsut want change vendor id , device id well!

so there problem! cannot find descriptor.c or simmilar in optiboot source code
also cannot find arduino windows , linux driver source code

so quesion how can change arduino uno, mini , nano name using optiboot bootloader ? have programmer atmel chips (which installed on arduinos) , reupload arduino uno firmware.

also, jsut want make hard (not disable because need firmware update!) upload new codes arduino prevent delete device software accidentally , brick it!

thanks lot , have lovely day:)

that located in usb-serial chip's firmware, not optiboot bootloader running on atmega328p.

if you're using board atmega16u2 usb-serial chip, can find firmware in hardware/arduino/avr/firmwares subfolder of arduino ide installation:
https://github.com/arduino/arduinocore-avr/tree/master/firmwares/atmegaxxu2

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