Remove the RTAI-kernel-only hardware drivers - #4513
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BsAtHome
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Sep 11, 2026
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Remove the drivers completely. |
GENERATED_MANPAGES depends on BUILD_SYS, so removing manpages by list leaves stale files behind on uspace trees (e.g. the kbuild-only driver manpages pluto_servo.9, pluto_step.9, pcl720.9). gen_complist.py then picks up the stale files and generates links to manpages the current build configuration cannot produce, making local doc builds diverge from CI. Everything under docs/build/man is generated (halcompile output, asciidoctor output from docs/src/man, alias pages, translations), so wipe the whole tree in both clean-manpages and genclean.
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Why move the sample configs? They are no longer necessary and not used in any meaningful way. The "Attic" is an old CVS construct. Why do we need it, at all? |
These drivers only ever built for RTAI kernels and were excluded from uspace builds since 2014, so no current install could load them: hal_stg, hal_motenc, hal_vti, hal_evoreg, hal_tiro, hal_ax5214h, opto_ac5, pci_8255, pcl720, pluto_servo, pluto_step All serve early-2000s ISA/PCI/parport cards. A poll on the forum and emc-developers found zero users with the hardware, Vital Systems reports no Motenc cards remaining and none known in use, and no testers are available, so a uspace port cannot be validated either. At the weekly meeting the decision was to remove them outright rather than deprecate. Also remove hal_skeleton (a kbuild-era code template), the now unused rbf2h.py firmware header generator, the pluto firmware trees (unbuildable without an ancient Quartus), and the sample configs for these cards (by_interface/pluto, servotogo, vigilant, vitalsystems, by_machine/boss, attic/demo_mazak). Driver docs, man pages, component-list rows and po4a masters go with the drivers.
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Wrong call, fixed in dd394d9: the configs are deleted outright, demo_mazak included. |
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Reshaped after the weekly-meeting decision: remove the drivers outright instead of deprecating. Zero users found in the poll, no testers, Vital Systems has no Motenc cards left.
Two commits:
clean-manpagesremoved manpages by the BUILD_SYS-dependent$(GENERATED_MANPAGES)list, so kbuild-only driver manpages survived forever on uspace trees and confused gen_complist.py (the local-vs-CI divergence hdiethelm hit in ci: Enable fail on htmlcheck error #4471). Everything under docs/build/man is generated, so wipe the tree.Verified: full build plus htmldocs pass, components_gen no longer mentions any of the removed drivers, repo-wide grep finds only historical comments.
Closes #4505.