Messages in this thread | | | From | Grant Edwards <> | Subject | Re: [PATCH v1 0/3] Add virtual serial null modem emulation driver | Date | Mon, 6 Jan 2020 22:06:50 -0000 (UTC) |
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On 2020-01-06, H. Peter Anvin <hpa@zytor.com> wrote: > On 2020-01-05 23:21, Rishi Gupta wrote:
>> The driver named ttyvs creates virtual tty/serial device which >> emulates behaviour of a real serial port device. Serial port events >> like parity, frame, overflow errors, ring indications, break >> assertions, flow controls are also emulated.
Brilliant! I've wanted that for decades. It would vastly simplify the implementation of some network-attached serial ports.
> OK, I believe I have asked this before, at least when this has come up in > other contexts: any reason not to do this by adding the missing elements to > the pty interface? For fixed-name nodes, the legacy PTY interface is basically > what you need.
I proposed doing exactly that many years ago, and I even offered to do it if there was some indication it would be accepted. The offer was ignored, and I never got far enough through the PTY code to determine if adding the required features would cause any problems for existing PTY users.
-- Grant Edwards grant.b.edwards Yow! What PROGRAM are they at watching? gmail.com
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