The ch340 should show up as usb-serial ch340 (com##) depending on your computer, the com port may show up as a different number here is a downloadable *zip of standard ch340 drivers for linux download ch340 drivers for linux (zip) there are some reported cases of serial communication failure when using the factory drivers in linux. Usb-serial ch340 driver linux. "originally" i downloaded drivers for the ch340 nano (or other - but that is the one which killed me) and they worked with the original ide i had---you were confused about difference between working in windows and working in linux for those of us who have used linux for some years, what you wrote about the ch340 driver is not news to us.
usb-serial ch340 driver linux
