I have 2 different astrophotography setups and both seem to have a hard to figure out Ekos related issue.  I don't have a lot of knowledge with do's and dont's with the Stellarmate software which makes getting up on my feet rather difficult.  

The issue which I will talk about in this thread is related to the fact that I've lost my connection to my Pegasus Pocket Box Advanced.Initially the Pegasus Pocket Box Advanced did work correctly.  I had a connection issue in Ekos with my new Pegasus Focus Cube 2.  When I discovered how to connect this, I was surprised to see that my Ekos connection to the PPBA was dropped.  I thought that perhaps the Pegasus Focus Cube stole the port for the PPBA so I reconfigured the PPBA in the Serial Port Assistant.  This seemed to make the error worse.Here is the error message that I'm seeing in Ekos. 

I can still see that the PPBA's USB Hub at least is still read inside the Ekos terminal.

 

I also see that the Serial Port Assistant still has my PPBA port listed.

 

Any ideas in how I might get the PPBA back to where it is connected again?

I have disconnected the Pegasus Focus Cube inputs from the PPBA box which initially caused the issue but the PPBA still will not connect.

You may find  this post  useful

I have had various issues, with various drivers and daemons scanning serial ports. My advice is to ensure that you hard code all serial devices via their appropriate /dev/serial/by-id/ symbolic link and disable the serial port scanning.

Also if you have a GPS - configure GPSD to the appropriate serial port and disable automatic serial scanning there as well.
 

Jabian:  Thanks for your help.  I am a complete dummy as concerned with Linux, but I do believe this is pointing in the right direction.

I went the route of Stellarmate to try avoiding the need to understand a computer language interface.  I believe the Stellarmate Serial Port Assistant attempts to do just that.

I can understand that perhaps the Serial Port Assistant struggles with specific manufacturers of devices which might come across as the same mapped device.

The linked  article  that you pointed out appears to almost reach at a solution.

I know that Stellarmate includes a terminal.  Someone told me that the "lsusb" command brings up a listing of my USB devices linked to the Raspberry Pi.

In this case I am assuming that a listing is required to know what the identification of the connected device is which would be the "lsusb" command.

From there Jasem takes the dev/USB? number to be listed.  I would guess that mine would be dev/USB0.

I unplugged the other USB ports into the Raspberry Pi until only the PPBA remained.

I typed the following into the Ekos terminal.  The number that would change per each review of the command line would be the USB#.udevadm info -a -n /dev/ttyUSB0 | grep '{serial}' | head -n1This I believe revealed the serial number.

 

I really didn't understand the rest of the instructions or more importantly what the exercise of finding the serial id has to do with mapping something with a unique identity which likely might resolve the issue.

Could someone help me get the rest of the way?

- In your Raspi go to /dev/serial/by-id 
- Check there if there is a file with a name like usb-Pegasus_Astro_PPBADV_revA_PPBA4PSFVS....
If yes, you are done:
- Copy the file name
- Open KStars, EKOS and start INDI (do not connect yet)
- On the INDI tab for the PPBA go to Connections and instead of using ‘PPBA’, ‘/dev/ttyUSB0’ o something like this for the communication port, fill the entry with the filename you copied.


  

 

Jabian, I typed in /dev/serial/PPBA5UY08G  thinking that "by-id" might mean insert the id that I found earlier.  The reply to this was "no such directory".

Thinking that this must mean that I should literal type /dev/serial/by-id I instead tried this.  My reply to this command was "is a directory".

So neither method yielded the directory contents I was after.  Did I do something wrong or is there something messed up with Ekos itself?
 
 

You have to use the full path of the file in '/dev/serial/by-id' (which is a folder).
Search first for the name of the file containing 'pegasus' in its name:

 

Then, in mi case, the port set in EKOS is exactly this:

/dev/serial/by-id/usb-Pegasus_Astro_PPBADV_revA_PPBA4PSFVS-if00-port0
 

jabian:  That is remarkable, you solved my issue.  You must have a good understanding of Linux because I had no clue about the path to follow here.

Now I will cross my fingers that the other ports won't be this fussy; especially the other Pegasus device which pulled this all apart.  If it does run into issues I will consult your instructions here.

The one thing that is peculiar is that it almost appears as if the 1st set of identification instructions

udevadm info -a -n /dev/ttyUSB0 | grep '{serial}' | head -n1

isn't really necessary, except in proving something is there in the 1st place.

Regardless,

Thank you so much for your help!