I wasn't happy with system screen closing when taking a screenshot.
So I just wasted another 20 minutes of my life in doing nothing useful but "Steps to make a very complicated screenshot"
Dump the framebuffer to the usb drive
cat /dev/fb0 >/mnt/udisk/picture.raw
Image is in raw Big endian bgr565 format (Yes, R and B are swapped)
Convert to png using ffmpeg, swapping the colours in the process.
(This was a PITA to find out and took a lot of trial and error, the outputs were better than the famous Andy Warhol drawings
)
ffmpeg.exe -vcodec rawvideo -f rawvideo -pix_fmt rgb565le -s 800x480 -i picture.raw -filter:v colorchannelmixer=rr=0:rb=1:br=1:bb=0 -vcodec png image.png
And here's the proof I can have a DSO2C10 with generator enabled!
(Somehow this PNG format breaks the forum thumbnail and shows always in large mode)