A bit of documentation details on callback API#784
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k1-801
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Mar 31, 2026
Youw
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Mar 31, 2026
| @@ -358,6 +365,9 @@ extern "C" { | |||
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| This function is safe to call from within a hotplug callback. | |||
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Apparently, not really, here is one unresolved issue: #674 (comment)
This was referenced Apr 24, 2026
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Opened #790 to expand this doc patch — keeps the intent (document the callback contract) but reworks the wording to match the Multi-threading Notes wiki style, enumerates what is safe to call, fixes the Drafted with Claude Code. |
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I already asked Claude to mark all messages as "generated" when thsose are posted on my behalf. |
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Jul 13, 2026
) Document the full hotplug API contract in hidapi.h: thread-safety rules (re-entrant hotplug mutex, safe-to-call list inside callbacks), execution context (callbacks only ever run on HIDAPI's internal event context), HID_API_HOTPLUG_ENUMERATE redefined as an asynchronous initial pass from a registration-time snapshot (exactly-once, delivered before live events, return value honoured), device lifetime rules (device->next == NULL, cached DEVICE_LEFT info), deregistration post-conditions, handle non-reuse, argument validation, and Since-version annotations. Implementation gaps vs this contract are tracked as follow-up issues (see PR description). Supersedes #784. Assisted-by: claude-code:claude-fable-5
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