On 4/22/22 09:32, karl@??? wrote:
> Fred:
> ...
>> I need to work with a nonstandard serial three button mouse without
>> scroll wheel. It needs a baud rate specification and gpm has an
>> option for this.
> ...
>> I know that gpm works with this mouse.
>
> Since gpm works with the mouse I wouldn't say it is a "non-standard"
> one. What mouse protocol does the mouse speak ?
>
The mouse is a Sun three button mouse without the scroll wheel. I
frequently use a program that makes extensive use of the middle button
and the pc mouse scroll wheel is hateful.
As I said in an earlier post there is an article on using a (different)
Sun mouse on Linux. The protocol used was msc. From looking at the
output with an oscilloscope that protocol does appear close if not correct.
> Common protocols are mouseman and msmouse.
> You can see what protocols are supported by gpm by doing:
>
> gpm -m /dev/null -t help
>
> Unfortunately you have to do that as root, it doesn't matter what
> you write as the device, it can be any string.
>
> You can also find out about mouse protocols with
>
> man mouse
>
> Examples of mouse protocols:
>
> https://web.stanford.edu/class/ee281/projects/aut2002/yingzong-mouse/media/Serial%20Mouse%20Detection.pdf
> https://www.kryslix.com/nsfaq/Q.12.html
>
> Example mouse code (if you want to build a mouse yourself):
>
> https://aspodata.se/git/openhw/boards_arm_aspo/mouse/mouse.c
>
> ////////
>> What program is used as mouse driver on Beowulf and Chimaera?
>
> In a text mode terminal you can use gpm or something similar.
>
> In wayland, I don't know, it seems libinput is used by wayland.
>
> In X11 you could use the mouse driver:
>
> https://www.x.org/releases/current/doc/man/man4/mousedrv.4.xhtml
> https://packages.debian.org/bullseye/xserver-xorg-input-mouse
>
> You have to configure the mouse driver yourself, udev is of no help
> for a serial mouse. You can have multiple serial mice connected and
> used. Example xorg.conf extracts:
>
> Section "InputDevice"
> Identifier "Configured Mouse"
> Driver "mouse"
> Option "CorePointer"
> Option "Device" "/dev/ttyS4"
> Option "Protocol" "MouseMan"
> EndSection
>
> Section "InputDevice"
> Identifier "Configured MSMouse"
> Driver "mouse"
> Option "SendCoreEvents"
> Option "Device" "/dev/ttyS5"
> Option "Protocol" "Microsoft"
> EndSection
>
> Todays usb mice can use:
>
> Section "InputDevice"
> Identifier "Generic Mouse"
> Driver "mouse"
> Option "SendCoreEvents" "true"
> Option "Device" "/dev/input/mice"
> Option "Protocol" "auto"
> Option "ZAxisMapping" "4 5"
> EndSection
>
> It has apperantly been removed in favour of libinput upstream:
>
> https://www.gentoo.org/support/news-items/2020-04-03-deprecation-of-legacy-x11-input-drivers.html
>
> Regards,
> /Karl Hammar
>
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As I said in an earlier post I haven't been able to get gpm to do
anything with the pointer. I haven't been able to find xorg.conf yet.
I will try an entry there.
Best regards,
Fred
::
Re: [DNG] mouse driver question
