raspberrypi / raspberrypi/linux

OV9281 External Trigger Support

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Dominant language
C
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Description

Hi!

In one of our Projects, we use the Arducam OV9281. We want to transition to libcamera, since they have deprecated their MIPI Driver.

Now for the actual problem: Our product relies on the external trigger functionality. After skimming through this repo and a bit of trial-and-error, I'm not really sure this is supported in libcamera with this module.
I've seen that #5260 e6a7eed8db3c41fce11d8bf7005819f1f302a9ee added support for the OV7251 external trigger, so maybe the process would be similar?

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the OV7251 external-trigger support referenced in issue #5260 and commit e6a7eed8db3c41fce11d8bf7005819f1f302a9ee, then compare it with the OV9281 module support in this kernel tree. Done means the OV9281 supports the external-trigger functionality required by the reported product use case.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
embedded-iot, operating-systems
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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