NekoCWD/libcamera
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libcamera: v4l2_device: add frame start event helpers

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Add helper to check if frame start event are supported by subdevice.
Since kernel does not have interface to query supported events
use subscribe interface.

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> # v3
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> # v5
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Stanislaw Gruszka 2025-04-03 09:45:47 +02:00 • committed by Kieran Bingham
parent a2a7f4fc2d
commit b2eccef711
2 changed files with 23 additions and 0 deletions
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include/libcamera/internal/v4l2_device.h
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@ -45,6 +45,7 @@ public:
const std::string &deviceNode() const { return deviceNode_; }
std::string devicePath() const;
bool supportsFrameStartEvent();
int setFrameStartEnabled(bool enable);
Signal<uint32_t> frameStart;