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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2020-05-22 00:13:32 +0300
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2020-05-28 04:31:05 +0300
commit2d5a369b2c5154a6ee6aef03e2a95300478bc8d3 (patch)
tree90f0bc2f15991b31a6c3a774139c83e309b7abcc /README.rst
parent2ed5259098c0aa52bc34f6d47076729d3e8da758 (diff)
v4l2: Relicense V4L2 compatibility layer under LGPL
The V4L2 compatibility layer is licensed under the GPL. It is compiled as a binary separate from libcamera.so, and is loaded into the address space of processes through LD_PRELOAD to intercept calls to the C library. It is our understanding and intent that the GPL license doesn't propagate to the binaries whose calls are intercepted, considering those binaries are not derivative work of the V4L2 compatibility layer and are not designed to be linked to the V4L2 compatibility layer. There is however a possibly grey area if binaries are packaged with a shell script wrapper that loads the V4L2 compatibility layer. This could lead to license-related issues if such packaging is performed by Linux distributions or system integrators. To clarify the intent and lift the doubts, relicense the V4L2 compatibility layer under the LGPL. The V4L2 compatibility layer code itself still benefits from the license protection, while its usage with third-party binaries is clearly allowed as intended. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Acked-by: Paul Elder <paul.elder@ideasonboard.com> Acked-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Acked-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
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