My current board setup appears to use an alpha value of about 0.5 for video that goes into /dev/fb1 or /dev/fb3. Is there any way to change this without using an ioctl? I found this "Alpha Test on iMX6Q" post which looks like what I want to do - is this the only way to do it? I'm using Yocto Dora if that's important or helps... Thanks!
In the end, the patches didn't work for us (we are using a 24 bpp monitor depth). So we recompiled the kernel with framebuffer support and used ioctl.
what is the reason you want to avoid ioctl?
Hi - any update or info on this? It would be nice to know if this is possible or not. Thanks!
Thanks, Eric. I'll give these a try and report back how they work out for me.
Two reasons:
1. I'd like to do a quick test/proof-of-concept using gst-launch
2. The system I'm using doesn't appear to have Linux framebuffer support included and I don't want to have to add it if I don't have to
Thanks,
Ernie