Hi Karl, The pl2303 has always worked in 8N1 mode for me, talking to serial devices. That's all I can say with certainty. On Fri, Dec 9, 2016 at 8:00 AM, Karl Palsson <karlp@xxxxxxxxxxxx> wrote: > > Can you actually trust that pl2303 module? They're not exactly > known for being trouble free, and have often been cloned in the > past as well, with varyings levels of success. Do you have a > cp210x or ft23x at all? > > This is one of the great pitfalls of loopback testing, it doesn't > test that anything really does what it says, just that it does > whatever it does consistently. > > Sincerely, > Karl P > > > Russell Senior <russell@xxxxxxxxxxxxxxxxx> wrote: >> > Also, when the above change makes usb-linus works, does changing the >> > word size appear to work after probe? >> >> I'm not sure what changing the word size is supposed to do. The >> usb-linus + previous patch in loopback seems to work with >> minicom regardless of wordsize. More so even than I would guess >> at 5N1: a -> a, A -> A. Trying to talk with a pl2303, 8N1 on >> both sides works. 7E1 works sending from ch341 to pl2303, but >> not pl2303 to ch341 (text is garbled on reception). 6N1 is >> garbled in both directions, but differently. >> >> >> Russell -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
