Re: [PATCH v7 2/3] ttynull: Add an option to allow ttynull to be used as a console device

[Andy Shevchenko]

On Wed, Mar 5, 2025 at 6:30 AM <adamsimonelli@xxxxxxxxx> wrote:
>
> From: Adam Simonelli <adamsimonelli@xxxxxxxxx>
>
> The new config option, CONFIG_NULL_TTY_DEFAULT_ CONSOLE will allow
> ttynull to be initialized by console_initcall() and selected as a
> possible console device.

...

>           In order to use this driver, you should redirect the console to this
> -         TTY, or boot the kernel with console=ttynull.
> +         TTY, boot the kernel with console=ttynull, or enable
> +         CONFIG_NULL_TTY_DEFAULT_CONSOLE.

I haven't checked what it looks like in menuconfig / nconfig / etc,
but I think that CONFIG_ is redundant here.

> +         If unsure, say N.
> +
> +config NULL_TTY_DEFAULT_CONSOLE
> +       bool "Support for console on ttynull"
> +       depends on NULL_TTY=y && !VT_CONSOLE
> +       help
> +         Say Y here if you want the NULL TTY to be used as a /dev/console
> +         device.
> +
> +         This is similar to CONFIG_VT_CONSOLE, but without the dependency on
> +         CONFIG_VT. It uses the ttynull driver as the system console.

Btw, do those `make nconfig` and friends render the options?

>           If unsure, say N.

-- 
With Best Regards,
Andy Shevchenko