Re: [PATCH v1 1/1] chardev: enable guest socket status/crontrol via DTR and DCD

[Darrin M. Gorski]

Unfortunately I ran out of cycles at the time.  Adding test cases seems like it was the roadblock - I don't think I ever figured out how to implement the needed build tests for this additional feature in chardev.  I'm not that strong of a C developer, unfortunately.

I haven't looked at picking this up in probably a year, so I don't even remember if I was able to get *anywhere* with it.

I did end up using a patched build myself,  and it worked fine for what I was doing which is probably why I didn't get back to it.

Sorry, I'm sure that's not the answer you were hoping for.  But the day job takes priority ;)

- Darrin

On Wed, Jan 12, 2022 at 10:20 AM Aaro Koskinen <aaro.koskinen@iki.fi> wrote:

Hi,

On Wed, Dec 16, 2020 at 05:06:51PM -0500, Darrin M. Gorski wrote:
> This patch adds a 'modemctl' option to "-chardev socket" to enable control
> of the socket via the guest serial port.
> The default state of the option is disabled.
>
> 1. disconnect a connected socket when DTR transitions to low, also reject
> new connections while DTR is low.
> 2. provide socket connection status through the carrier detect line (CD or
> DCD) on the guest serial port
>
> Buglink: https://bugs.launchpad.net/qemu/+bug/1213196
>
> Signed-off-by: Darrin M. Gorski <darrin@gorski.net>

Is there any plans to continue working with this patch? Having the DCD
status would be very useful.

A.