Differential D57914

fwcamctl: add control utility for fwcam(4) IIDC FireWire cameras
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Authored by guest-seuros on Jun 27 2026, 8:56 PM.

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adrian
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rG94f24c0ee239: fwcamctl: add control utility for fwcam(4) IIDC FireWire cameras

Summary

fwcamctl provides userland access to /dev/fwcam0. Supported
subcommands: info (camera state, format, mode, rate, features),
snap (capture a frame as PPM), mode (set format/mode/rate), and
feat (get/set camera feature registers).

snap converts YUV422, YUV411, YUV444, RGB8, and Mono8 pixel
formats to RGB24 PPM with no external dependencies. A configurable
frame skip (default 5) allows auto-exposure and auto-white-balance
to settle before capture.

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Repository

rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

guest-seuros created this revision.Jun 27 2026, 8:56 PM

Herald added a subscriber: imp. · View Herald TranscriptJun 27 2026, 8:56 PM

guest-seuros requested review of this revision.Jun 27 2026, 8:56 PM

Harbormaster completed remote builds in B74338: Diff 180837.Jun 27 2026, 8:56 PM

adrian added a project: firewire.Tue, Jul 7, 7:21 AM

adrian added a reviewer: firewire.

adrian added a subscriber: firewire.

guest-seuros added a parent revision: D58033: fwohci: fix LPS delay, PHY_INT storm, and SID timeout recovery.Tue, Jul 7, 8:10 PM

adrian edited parent revisions, added: D58092: fwcam: write video mode registers before enabling ISO streaming; removed: D58033: fwohci: fix LPS delay, PHY_INT storm, and SID timeout recovery.Tue, Jul 7, 8:41 PM

adrian accepted this revision.Tue, Jul 7, 8:45 PM

adrian added inline comments.

sys/dev/firewire/fwcam.c
152	This should be in a separate commit!

This revision is now accepted and ready to land.Tue, Jul 7, 8:45 PM

Closed by commit rG94f24c0ee239: fwcamctl: add control utility for fwcam(4) IIDC FireWire cameras (authored by guest-seuros, committed by adrian). · Explain WhyWed, Jul 8, 5:42 AM

This revision was automatically updated to reflect the committed changes.

adrian added a commit: rG94f24c0ee239: fwcamctl: add control utility for fwcam(4) IIDC FireWire cameras.

Revision Contents
Changeset List

Path

Size

sys/

dev/

firewire/

64 lines

21 lines

usr.sbin/

1 line

fwcamctl/

9 lines

156 lines

450 lines

Diff 181515

sys/dev/firewire/fwcam.h

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sys/dev/firewire/fwcam.c

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usr.sbin/Makefile

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usr.sbin/fwcamctl/Makefile

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usr.sbin/fwcamctl/fwcamctl.8

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usr.sbin/fwcamctl/fwcamctl.c

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