How to set the baud rate and the configuration of "ATmega16U2 (usb/serial bridge of Arduino uno)" by stm32f407g-disc1 USB as a HOST using CDC class?

[IChak.1]

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[Tesla DeLorean]

Perhaps review the source of the Arduino CDC, related to the line encoding

https://community.st.com/s/article/how-to-set-usb-cdc-line-coding

[IChak.1]

Thanks a lot Tesla DeLorean ;

did you have any idea how to solve this problem ? i'm trying to set the LineCoding values, but it gives me in turn "expected identifier or '(' before '.' token" & "expected '=', ',', ';', 'asm' or '__attribute__' before '.' token"!