linux-kernel - Re: [PATCH] auxdisplay: hd44780: move cursor home after clear display command

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Message-Id: <20230722140743.fe710f4f12c344f07d879c88@hugovil.com>
Date:   Sat, 22 Jul 2023 14:07:43 -0400
From:   Hugo Villeneuve <hugo@...ovil.com>
To:     Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc:     me@...idreaver.com, poeschel@...onage.de,
        Miguel Ojeda <ojeda@...nel.org>,
        Hugo Villeneuve <hvilleneuve@...onoff.com>,
        linux-kernel@...r.kernel.org, geert@...ux-m68k.org,
        Christian Meusel <christian.meusel@...teo.de>
Subject: Re: [PATCH] auxdisplay: hd44780: move cursor home after clear
 display command

On Sat, 22 Jul 2023 18:04:03 +0200
Miguel Ojeda <miguel.ojeda.sandonis@...il.com> wrote:

> On Sat, Jul 22, 2023 at 4:54 PM David Reaver <me@...idreaver.com> wrote:
> >
> > I was actually hooking up a 16x2 HD44780 on my BeagleBone Black last
> > night before I came across this patch, so I was able to test this. It
> > works fine for me. I tested with:
> >
> >     $ printf '\f' > /dev/lcd
> >     $ printf 'Hello\nWorld!\n' > /dev/lcd
> >     $ printf '\x1b[LR' > /dev/lcd
> >     $ printf '\x1b[LR' > /dev/lcd
> >     $ printf '\x1b[LR' > /dev/lcd
> >     $ printf '\f' > /dev/lcd
> >     $ printf 'Goodbye\nWorld!\n' > /dev/lcd
> >
> > As expected, "Goodbye World!" was correctly placed left-aligned on the
> > display, split over both lines. Let me know if there is something else
> > you would like me to do to test this!
> >
> > Tested-by: David Reaver <me@...idreaver.com>
> 
> Thanks a lot, that is very helpful!
> 
> I will wait a while in case Christian or somebody else wants to test
> it, and send it for 6.6.

Hi Miguel,
in the meantime, I will send V2 of the patch with the changes you
suggested for the commit message and the comments.

Hugo.