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How to add new overlays for fb0

Question asked by zeyong yang on Dec 5, 2018
Latest reply on Dec 5, 2018 by Bio_TICFSL

I use mx6q and linux3.14.52

 

By default fb1 is overlay of fb0, ButI want to add new overlay to fb0,then i can use 2 overlay to do displaycomplex graphics 

 

root@dev:~# cat /sys/class/graphics/fb0/name
DISP4 BG - DI1
root@dev:~# cat /sys/class/graphics/fb1/name
DISP4 FG
root@dev:~# cat /sys/class/graphics/fb2/name
DISP3 BG
root@dev:~# cat /sys/class/graphics/fb3/name
DISP3 FG
root@dev:~# cat /sys/class/graphics/fb4/name
DISP4 BG

 

Main UI is on fb0-DISP4 BG - DI1 , fb1 is overlay of fb0.  I want to use fb3 or fb4 as new overlay of fb0

 

Who can give me some advice ?

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