Hi Sakari, all, I am currently working with libcamera and trying to make it work on a IPU3 pipeline (MS Surface Go 2)... I can set the buffer parameters, thanks to Niklas work, but can't get the 3A statistics buffer back. More precisely, the buffers are queued/dequeued but the 'ae_en' bit is never set to 1, and all the raw buffers are set to '0' values. I suppose I have missed to set one parameter somewhere, but according to https://www.kernel.org/doc/html/v5.6/media/uapi/v4l/pixfmt-meta-intel-ipu3.html#c.ipu3_uapi_ae_grid_config setting the 'ae_en' bit in the ipu3_uapi_ae_grid_config structure should be enough to trigger ? I have pushed my (very work in progress) work here: https://github.com/jhautbois/libcamera/tree/test-fake-ipu3-ipa I would appreciate feedback on this stuff, as I can't see anything missing from a user-space perspective right now... :-) Thanks, -- Regards, JM
