linux-kernel - Re: [PATCH v5 1/2] tty: add new helper function tty_get

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Message-ID: <2023102327-rename-kosher-bf03@gregkh>
Date:   Mon, 23 Oct 2023 12:06:34 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Florian Eckert <fe@....tdt.de>
Cc:     Eckert.Florian@...glemail.com, jirislaby@...nel.org, pavel@....cz,
        lee@...nel.org, kabel@...nel.org, u.kleine-koenig@...gutronix.de,
        m.brock@...mierlo.com, linux-kernel@...r.kernel.org,
        linux-serial@...r.kernel.org, linux-leds@...r.kernel.org
Subject: Re: [PATCH v5 1/2] tty: add new helper function tty_get_tiocm

On Mon, Oct 23, 2023 at 11:42:04AM +0200, Florian Eckert wrote:
> There is no in-kernel function to get the status register of a tty device
> like the TIOCMGET ioctl returns to userspace. Create a new function,
> tty_get_tiocm(), to obtain the status register that other portions of the
> kernel can call if they need this information, and move the existing
> internal tty_tiocmget() function to use this interface.
> 
> Signed-off-by: Florian Eckert <fe@....tdt.de>

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>