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Update 28-10-2025-Configuration-Changes

watts
2025-10-29 20:35:01 +01:00
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commit 393a421e53
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28-10-2025-Configuration-Changes.-.md

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Many of the hardware drivers for the PCI cards used by Pixelator are from the Comedi project, which has been merged into the mainline Linux kernel. One consequence of this change is that the "comedi number" of a device is no longer stable between reboots and we have to switch to using the /sys virtual file system to refer to specific hardware in a stable way. So wherever we used to see things like a "device number", or a "/dev/comedi0", we will now need to set a "deviceName" option with a path string like "/sys/bus/pci/devices/0000:00:00.0/". This has been implemented in commits to the Pixelator repository on October 28th, 2025, and updating your installation after this date will require a change in configuration for both Pixelator and Orocos.
**WARNING**: This procedure involves compiling a new version of the Orocos modules, which will overwrite the previously compiled ones. Therefore, going back to a previous version will involve more than [just switching the stxm-directory link to the previous version](https://gitea.psi.ch/MicroSpectro/Pixelator/wiki/Update-Pixelator-Version.-#activate-a-different-version) since the old Orocos modules will need to be compiled again.
**<span style="color: red;">WARNING</span>**: This procedure involves compiling a new version of the Orocos modules, which will overwrite the previously compiled ones. Therefore, going back to a previous version will involve more than [just switching the stxm-directory link to the previous version](https://gitea.psi.ch/MicroSpectro/Pixelator/wiki/Update-Pixelator-Version.-#activate-a-different-version) since the old Orocos modules will need to be compiled again.
## Backup Config Files