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Re: Mouse support for just the wheel and left button.

From: John Murphy
Subject: Re: Mouse support for just the wheel and left button.
Date: Thu, 17 Dec 2015 13:34:10 +0000

On Thu, 17 Dec 2015 08:52:05 +0300, Andrei Borzenkov wrote:

> 17.12.2015 05:52, John Murphy пишет:
> > Hello and thanks for Grub. I use it daily.
> > 
> You need to boot so often? :)

Twice today already! :)

> > I've seen questions regarding mouse support, but the answers imply that an
> > on-screen pointer is requested. I would find it very useful to be able to
> > use the mouse scroll wheel (which is just two switch clicks if I understand
> > correctly) to move up and down between entries, and one click on the left
> > mouse button to emulate pressing Enter.
> > 
> > All that would seem necessary is for wheel up-button to do up arrow, wheel
> > down-button - down arrow and left-button - Enter.
> > 
> GRUB mostly relies on firmware support. At least for EFI there is no
> notion of "wheel", only mouse move events. I do not know if mouse can be
> accessed via BIOS at all.

I'm able to scroll through entries on pages in my BIOS using the wheel
(Asus Maximus VII Formula). Not sure if that means anything.

> For tablet type devices using volume up/down and tap may work for menu
> selection, assuming that modern devices are EFI based.
> > I have my own reasons for wanting the feature, but, while searching for
> > information, I saw that some users are finding their USB keyboard isn't
> > supported and they may have found simple mouse button and wheel support
> > useful.
> > 
> > It could also help those who usually use on-screen keyboards like the
> > quite excellent OnBoard.
> > 
> Someone who has hardware and can actually test it needs to send patches.

Happy to test on mine, but I'd need a few pointers on how to apply a patch.
(I've tested kernel patches for a developer, which were committed.)

I've joined the list, so no need to CC, thanks.

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