Differential D58100

fwcam: defer ISO streaming to first read
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Authored by seuros on Jul 8 2026, 8:08 AM.

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rG56d4dee82de1: fwcam: defer ISO streaming to first read

Summary

Moved ISO start to first usage. Opening the device now
only validates state and increments the open count, allowing info
queries and mode changes without starting the camera. ISO streaming
begins on demand when userland first reads frame data.
This avoid the camera led to turn-on at attach.

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rG FreeBSD src repository

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Event Timeline

seuros created this revision.Jul 8 2026, 8:08 AM

Herald added a subscriber: imp. · View Herald TranscriptJul 8 2026, 8:08 AM

seuros requested review of this revision.Jul 8 2026, 8:08 AM

Harbormaster completed remote builds in B74610: Diff 181524.Jul 8 2026, 8:08 AM

seuros added a reviewer: firewire.Jul 8 2026, 8:26 AM

seuros added projects: firewire, drivers.

adrian accepted this revision.Jul 9 2026, 12:56 AM

This revision is now accepted and ready to land.Jul 9 2026, 12:56 AM

adrian added a child revision: D58101: fwcam: retry ISO enable after re-powering camera.Jul 9 2026, 12:56 AM

Closed by commit rG56d4dee82de1: fwcam: defer ISO streaming to first read (authored by seuros, committed by adrian). · Explain WhyJul 9 2026, 2:54 AM

This revision was automatically updated to reflect the committed changes.

adrian added a commit: rG56d4dee82de1: fwcam: defer ISO streaming to first read.

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Path

Size

sys/

dev/

firewire/

24 lines

Diff 181580

sys/dev/firewire/fwcam.c

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