On 22 Sep 2014, at 17:31, Bram Van Steenlandt <b...@diomedia.be> wrote:
> No specific reason actually, I didn't even know twisted had support for a > serial port. > > This being said: > ftdio_sio can be a bit buggy at times, esp when using multiple devices on the > same pc, ftdi on freebsd & osx isn't very stable either. > I use this interface selector system where the serial connection can be setup > with pyserial,libftdi (which works much better for ftdi adapters) or a tcp > socket (which uses a so called "device server" with ethernet and rs232 > onboard). > Doing it with twisted seems more complicated to me (but I could be wrong), in > my case it makes a lot of sense to wait for the data, I poll plc's over rs485 > and those kind of things. Use cases vary :-) In a wait-dosomething-wait scenario, I find @inlineCallbacks to typically yield virtually the same code you ended up with. When I was doing this, there was some pretty complex chatter back and forth, and I was multiplexing several connections over a single RS232 device, so Twisted certainly came in handy. In your case: don’t fix what ain’t broken, of course :) > Also as I've said, there are sometimes a lot of hardware issues (usb bus > resets and stuff, users that disconnect usb-ports and plug them back in) > which can be difficult to deal with. > > How long does twisted has this serial port support actually ? Well over a decade: Mon Dec 16 04:04:25 2002 to be precise. See svn rev trunk@4528. hth lvh
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