Dear Jithin, thank you for your very fast response. I attach the file eyes_udev.sh, which is called upon eyes17's post-installation, as "eyes_udev.sh enable", thus creating or keeping the file /lib/udev/rules.d/99-phoenix.rules, with this content:
-----------8<----- /lib/udev/rules.d/99-phoenix.rules --------------
# udev rules for expEYES interface: AVR, FT232, MCP2200 and CH340
SUBSYSTEM=="usb",ATTRS{idVendor}=="03eb", ATTRS{idProduct}=="21ff", MODE="666"
SUBSYSTEM=="tty",ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001", MODE="666"
SUBSYSTEM=="tty",ATTRS{idVendor}=="04d8", ATTRS{idProduct}=="00df", MODE="666"
SUBSYSTEM=="tty",ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="7523", MODE="666"
ATTRS{idVendor}=="03eb", ATTRS{idProduct}=="21ff", ENV{ID_MM_DEVICE_IGNORE}="1"
ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001", ENV{ID_MM_DEVICE_IGNORE}="1"
ATTRS{idVendor}=="04d8", ATTRS{idProduct}=="00df", ENV{ID_MM_DEVICE_IGNORE}="1"
ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="7523", ENV{ID_MM_DEVICE_IGNORE}="1"
# interest_eyes17
-----------8<---------------------------------------------------------
Please can you check whether ATTRS{idVendor}=="03eb", ... "0403", ....
"04d8", ... "1a86" will be enough to blacklist our boxes' interfaces for
modemmanager, and eventually the interface of eyes17?
Then, please can you check that installing modemmanager will let Eyes17
boxes in peace, when such a rule is activated for udev?
Currently, my Eyes17 box is lended to a colleague who is trying the
complete list of experiments of the User Manual, while reviewing the
Spanish version, and might want to buy such boxes, for his technical
school. I can ask him to give it back, and he would do it shortly, but
he asked me two days ago whether I could lend the box some longer; I
did not know that I would get a bug report today :)
Best regards, Georges.
jithin bp a écrit :
> Dear Georges,
>
> The modem-manager probes serial ports with random AT commands causing
> communication errors in a wide range of devices which use the serial port,
> most common ones being embedded development tools such as for the Arduino ,
> PIC etc.
> This issue has been reported in many forums
> -
> https://mail.gnome.org/archives/networkmanager-list/2013-October/msg00038.html
> -
> https://askubuntu.com/questions/1231894/modemmanager-conflicts-with-arduino
> - https://github.com/ubuntu/ubuntu-make/issues/4
>
> In case of ExpEYES, random communication errors, and subsequent data loss
> occurs during data acquisition tasks if Modem Manager is running in the
> background. Perhaps there is some way to place a lock on the active serial
> port to prevent MM from probing it.
>
> One suggestion that needs to be rigorously tested is to blacklist the
> serial device of ExpEYES(VendorID:ProductID) for Modem Manager so that it
> will ignore it.
> https://askubuntu.com/questions/1231894/modemmanager-conflicts-with-arduino
>
> The user community is currently in the range of a few thousands, and is
> expected to grow, so a solution must be quickly resolved after studying
> which serial devices Modem-Manager automatically likes to probe, and to
> keep ExpEYES ( ID 04d8:00df Microchip Technology, Inc.) out of that list.
>
>
> More about ExpEYES
> - https://expeyes.in/
> - https://csparkresearch.in/expeyes17/
> - https://csparkresearch.in/expeyes17/blog
>
> Regards,
> Jithin
>
> On Wed, Jun 30, 2021 at 9:36 PM Georges Khaznadar <georges.khazna...@free.fr>
> wrote:
>
> > Dear Andreas,
> >
> > I added in Cc: the authors of Expeyes hardware and software.
> >
> > Hello Jithin, Ajith! the context about the bug report with serious
> > severity is below.
> >
> > ----
> >
> > I ignored that a statement like "Conflicts: modemmanager" would create
> > problems with buster->bullseye upgrades. Currently, binary packages
> > conflicting with modemmanager are: eyes17, python3-expeyes,
> > firm-phoenix-ware. The first one, eyes17, will be the most used.
> >
> > This statement was added because boxes of the Expeyes family do not
> > communicate correctly by their serial link when modemmanager is
> > installed. I did not investigate further, to know the precise reason of
> > the incompatibility.
> >
> > I got e-mails of some users of previous versions of expeyes packages,
> > who could not activate their boxes, and my reply was to uninstall
> > modemmanager or upgrade to the new version of eyes17 package.
> >
> > The number of Expeyes users is currently growing in Kerala (a southern
> > state of India), and they rely on *eyes17* package, some with a Debian
> > machine, most with an Ubuntu machine. This community is growing since
> > Eyes17 box has become an officially encouraged scientific device, to be
> > distributed to all high schools in the state, together with training.
> >
> > I cannot withdraw the confict statement without damaging this user
> > community in the future.
> >
> > Hence the next question:
> > ------------------------
> >
> > How would it be possible to keep expeyes packages in the soon-to-come
> > Debian/Stable distribution?
> >
> > The package modemmanager is recommended by widely used packages, like
> > network-manager, while eyes17 is recommended by no package.
> >
> > I do not know how many users do really need modemmanager, or use modems.
> >
> > However I know better the profile of users who use eyes17: they are
> > students and teachers, wo interact inside a high school. Then, the link
> > with Internet is generally provided by some router or some wireless box,
> > and no modem is used.
> >
> > @Jitin, @Ajith:
> > can you give please an estimate of the user community for eyes17 now,
> > and in a near future?
> >
> > Best regards, Georges.
> >
> > Andreas Beckmann a écrit :
> > > Package: python3-expeyes
> > > Version: 4.8.7+repack-4
> > > Severity: serious
> > > User: debian...@lists.debian.org
> > > Usertags: piuparts
> > > Control: affects -1 + eyes17
> > >
> > > Hi Georges,
> > >
> > > while investigating incomplete buster->bullseye upgrades, I came across
> > > the Conflicts: modemmanager in python3-expeyes. Why was that added?
> > > It is not mentioned in the changelog and the git commit introducing it
> > > doesn't explain it either.
> > > Should this have been a versioned Breaks instead?
> > >
> > > The modemmanager package still exists in bullseye, so what should be the
> > > desired buster->bullseye upgrade outcome for buster systems with both
> > > modemmanager and python3-expeyes installed (that happens e.g. when
> > > installing eyes17/buster with --install-recommends)?
> > >
> > >
> > > Andreas
> >
> > --
> > Georges KHAZNADAR et Jocelyne FOURNIER
> > 22 rue des mouettes, 59240 Dunkerque France.
> > Téléphone +33 (0)3 28 29 17 70
> >
> >
>
> --
> jithin
--
Georges KHAZNADAR et Jocelyne FOURNIER
22 rue des mouettes, 59240 Dunkerque France.
Téléphone +33 (0)3 28 29 17 70
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