Hellu Stuvart, On Thursday 19 Jan 2017 23:06:08 Stuvart S wrote: > Hi Laurent, > > Thank you for that information. I am not meaning to capture the > frames to memory but, I have my own C code snippet to alter image to > some other forms which reads from a frame buffer ..here I am going to > do the tapping of image data from DU and modify according to my code > and write back to same location so that I expect the DU output will > alter..Actually there should be the image data which is get transfered > through DU unit to various DU outputs right? > > or should I Concentrate on framebuffer?...I Could see a file named > framebuffer.c in /driver/gpu/drm/ in the stable kernel release which I > Could not in older versions..I don't know what is the reason of that.. I think you need to learn more about the DRM/KMS API. At this point this isn't a DU-specific issue, and what you want to do isn't how the display APIs in Linux operate. -- Regards, Laurent Pinchart
