On Tue, Oct 29, 2024 at 11:13:28AM -0400, Stefan Monnier wrote: > >> 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".
Hmmm. An interesting point. Yet another rabbit hole =:-o Cheers -- t
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