Does Samsung tv support USB access as mobile application?

Is USB Host api supported for tv application?
I have checked .NET, but USB host api seems to only be supported for mobile application.
Is there any api to detect connection of usb device and change data for tv application?

Hi, all.
We notice that the core web engine of Tizen 5.0 is updated, and included web USB. (
But when we call navigator.usb.requestDevice function on Tizen web simulator, the prompt list for selecting device didn’t appear. Instead, it rejected the promise.

Is there any one know the reason?

Thank you.