>> The CH340 is a well-known device, and the usbserial module along with
>> something like cp210x should deal with multiple devices, assigning them
>> ttyUSBx device numbers.
[...]
> I doubt all that baud rate, stop bits and parity dance we know and love
> from the RS232s of yore are necessary with TTYUSBs. We are talking to
> an abstraction layer in the kernel anyway.
The CH340 is a real USB<->serial converter, so somewhere inside the
device is a real serial connection which speaks at a specific speed and
the CH340 probably has to match that speed if we want to get valuable
output, I suspect. IOW, I think it's not "just an abstraction layer".
Stefan
