This feature explores the Linux CH340 driver: its architecture, performance characteristics, common pitfalls, and why it deserves more respect than it often gets.
Early Linux users remember the CH340 with a shudder. For years, the default ch341.ko driver was a mess—plagued by dropped bytes, incorrect baud rate calculations, and complete failure at higher speeds. Many tutorials simply advised throwing away CH340 cables in favor of FTDI or Silicon Labs CP2102. linux ch340 driver