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INDI Library v1.9.5 Released (08 Mar 2022)

Bi-monthly INDI Library released with new drivers and bug fixes.

How can I modify a driver?

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I'm having an issue with my mount. It looks like the controls are reversed. When I click the move north button, it is moving south and south moves north. Same goes for east and west motion control.
I looked at the Ioptron ZEQ25 driver on github and cross referenced the commands with the command language for the zeq and it should be right but my mount must have some wires crossed somewhere. I wanted to try to mod the driver by switching the motion control commands for N,S,E,W motion. Beside working a bit with arduino I no nothing about programming.

So, how would I go about modding the driver for my own personal use ?
2 years 10 months ago #40944

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Before to change the code you must be sure this is really required.

It is normal that N/S are reversed depending on the meridian side. Normally if you move the mount on the other side of the meridian you must find that N/S work normally.

Are you sure E/W is reversed ? Do it track in the right direction? Do the mount as a Northern/Southern hemisphere setting? Is your latitude configured right at every place?
2 years 10 months ago #40947

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Great advise and questions from Patrick. On top of that, check the Telescope configuration and see if changing any of these Motion settings help solve the issue:




HTH, Wouter
Wouter van Reeven

ASI6200MM and 7 slot 2" filter wheel with a SkyWatcher Esprit 80 ED on a SkyWatcher HEQ5-Pro
ASI1600MM-Pro Cooled and 5 slot 1.25" filter wheel with an 8" TS Ritchey-Chrétien on a SkyWatcher EQ6-R
2 years 10 months ago #40948
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On the opposite side of the meridian (west) North moves north and south moves south. On the east side it moves in the opposite direction.

Mount tracks fine. Hand controller is set to northern hemisphere. Mount has GPS and is set to right Long/Lat. Have GPS set up on the Stellarmate and location is set correctly in Ekos.

When performing polar alignment assistant the mount moves in the opposite direction than the assistant expects it to move and aborts.

When I hit the move west button the mount puts the telescope on the east side of the mount and vise versa with moving east.
2 years 10 months ago #40957

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OK, if you want to try to modify the driver all the documentation is here:
www.indilib.org/develop/developer-manual.html

Start by : www.indilib.org/develop/developer-manual...ent-environment.html
For such a simple change you can probably ignore the part about QtCreator but you can use it if you prefer.

To help to understand the driver :
www.indilib.org/develop/developer-manual...ver-development.html
If you want to add more messages to the log for debugging:
www.indilib.org/develop/developer-manual/160-debug-logging.html

As your driver is in libindi you only need to build this, no need to compile anything in 3rdparty to test the mount.

Patrick
2 years 10 months ago #40961

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OK
I modified the driver .cpp file in /projects/indi/libindi/drivers/telescope. Is that the file I need to edit? After editing the E and W motion commands I saved the file. How do I compile it or do whatever I need to do so Ekos will load the modified driver?
2 years 10 months ago #40976

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When I typed in "cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Debug ~/Projects/indi/libindi" I got an error message.
2 years 10 months ago #40977

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You must replace ~/Projects/indi/libindi by the exact path where you install the indi source code. From your previous message it is projects in lowercase.

If you get other error message please copy the error text here.
2 years 10 months ago #40980

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I appreciate your help.

I forgot to capitalize the p in projects in my previous post. Where does ubuntu install indi when you do sudo apt-get install indi-full? The ~/Projects folder is where the git hub source was loaded into.
2 years 10 months ago #40985

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The CMAKE_INSTALL_PREFIX is set by your command to /usr so the libraries end up in /usr/lib. Note that they will only appear there after issuing

sudo make install
Wouter van Reeven

ASI6200MM and 7 slot 2" filter wheel with a SkyWatcher Esprit 80 ED on a SkyWatcher HEQ5-Pro
ASI1600MM-Pro Cooled and 5 slot 1.25" filter wheel with an 8" TS Ritchey-Chrétien on a SkyWatcher EQ6-R
2 years 10 months ago #40986

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The indi deb (indi-full and other) get installed in /usr

This is why you specify -DCMAKE_INSTALL_PREFIX=/usr in the cmake command. This way when you run "sudo make install" it install in /usr , overwriting the version installed by the deb. This is much better than having two install at different place.
Ekos will use your new compiled version without any other configuration.
2 years 10 months ago #40987

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I copied the all the libindi files including the modified driver for my mount to the ~/Projects/build/libindi folder.

This is what I got when I enter the cmake command:

doug@doug-X551CA:~/Projects/build/libindi$ cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Debug ~/Projects/indi/libindi
bash: /usr/bin/cmake: No such file or directory

Then I created a new folder in /usr/bin and named it cmake and did the cmake command again and got:
doug@doug-X551CA:~/Projects/build/libindi$ cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Debug ~/Projects/indi/libindi
bash: /usr/bin/cmake: Is a directory

Then did the install command:
doug@doug-X551CA:~/Projects/build/libindi$ sudo make install
make: *** No rule to make target 'install'. Stop.

What am I doing wrong?
2 years 10 months ago #40989

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