Quoting Petko Manolov (2022-11-28 14:07:22) > On 22-11-28 13:38:12, Kieran Bingham wrote: > > Quoting Petko Manolov (2022-11-28 13:11:39) > > > On 22-11-28 12:45:32, Kieran Bingham wrote: > > > > Hi Petko, > > > > > > > > What device/ISP are you testing this sensor on? > > > > > > I'll tell you, but only if you promise to not laugh too much. Deal? > > > > > > i.MX8M-Mini > > > > > > I hope nobody will notice the above line... > > > > I won't laugh at all. We've just merged the ISI pipeline handler for > > libcamera, which should let you use libcamera on this target (I think). > > I think i saw your patch in the ML. > > > I would hope sometime in the future you'd be able to use the ISI pipeline > > handler with a GPU based ISP with this sensor too. > > Both of the above are present in i.MX8M-Plus, not the Mini. > > > How are you managing the image 3a? the imx492 is a raw sensor isn't it ? > > Not sure what you mean by "image 3a" and yes, it's a raw sensor. I meant how are you handling "Auto-exposure" "Auto-gain" "Auto-whitebalance" (known as 3a). There's more than that of course, but those are the basics that are expected to be able to get a 'usable' image. Unless of course you're doing everything with manual controls ... which is the alternative for a fixed/known lighting environment. But without an ISP on the device anyway, perhaps there's already more going on elsewhere? -- Kieran. > > > > Quoting Petko Manolov (2022-11-25 15:31:15) > > > > > This patch adds dt-bindings documentation, driver source, etc for Sony imx492 > > > > > image sensor. > > > > > > > > > > imx492 is a diagonal 23.1 mm (Type 1.4) CMOS image sensor with color or > > > > > monochrome square pixel array and approximately 47.08 M effective pixels. 12-bit > > > > > digital output makes it possible to output the signals with high definition for > > > > > moving pictures. It is programmable through I2C interface. The I2C client > > > > > address can be either 0x10 or 0x1a depending on SLASEL pin. Image data is sent > > > > > through MIPI CSI-2. > > > > > > > > > > Petko Manolov (5): > > > > > DT bindings for imx492 > > > > > media: i2c: imx492: driver's header > > > > > media: i2c: imx492: driver's source > > > > > media: i2c: add imx492 config entry > > > > > media: i2c: add imx492 entry for make > > > > > > > > Could you squash patches 2, 3, 4, and 5 into a single patch please? > > > > > > This is the exact opposite to what the networking folks would prefer, but it's > > > OK with me. > > > > Haha ... yes - isn't it great working in mulitple subsystems.... > > Yeah, easy to get confused... :) > > > > > Also - I think you'll need an entry in MAINTAINERS. > > > > > > Right, that one too. > > > > > > > I can't see any reference to the selection controls: > > > > - V4L2_SEL_TGT_CROP_DEFAULT > > > > - V4L2_SEL_TGT_CROP > > > > - V4L2_SEL_TGT_CROP_BOUNDS > > > > > > These are in a very early phase of implementing. > > > > Ok > > > > > > Do you have the datasheet or sufficient information to be able to implement > > > > these controls? > > > > > > Of course not. We are brute forcing our way forward by mostly reverse > > > engineering another solution that has an FPGA on the other end of the CSI link. > > > > Understood ;-) (and ... I think what I was fearing/anticipating). > > I would have been too easy otherwise. > > > Petko
