On Tue, 4 Nov 2014, Andrew Chew wrote: > Hello, Guennadi > > I was wondering if you can provide some advice as to how focuser vcm > devices would fit into the soc-camera framework. We have a raw sensor > (an IMX219) with an AD5823 VCM (it's just a simple I2C device) to > provide variable focus. > > I currently have the sensor and camera host driver instantiated via > device tree, following the guidelines in > Documentation/devicetree/bindings/media/video-interfaces.txt, by using > the of_graph stuff, and that all works fine. However, I'm not sure what > the proper way is to associate a focuser with that particular image > pipeline, and I couldn't find any examples to draw from.
As discussed in an earlier thread [1], in principle soc-camera has support for attaching multiple subdevices to a camera-host (camera DMA engine) driver. In [2] you can see how I initially implemented DT for soc-camera, which also supported multiple subdevices. Beware, very old code. Some more comments are in [3]. Thanks Guennadi [1] http://www.spinics.net/lists/linux-sh/msg31436.html - see comment, following "Hm, I think, this isn't quite correct." [2] http://marc.info/?l=linux-sh&m=134875489304837&w=1 [3] https://www.mail-archive.com/linux-media@vger.kernel.org/msg70514.html > > Any help/guidance would be appreciated! > ----------------------------------------------------------------------------------- > This email message is for the sole use of the intended recipient(s) and may > contain > confidential information. Any unauthorized review, use, disclosure or > distribution > is prohibited. If you are not the intended recipient, please contact the > sender by > reply email and destroy all copies of the original message. > ----------------------------------------------------------------------------------- > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
