How to change default framebuffer for Android?

i'm porting android to an overo gumstix. thus it seems the the omapfb driver has some problems on that platform. it doesn't matter at all, because i want to use udlfb (a driver for usb displays) anyway.

till today, i wasn't able to figure out how i can define udlfb as default framebuffer. tried开发者_StackOverflow中文版 make menuconfig and select udlfb there, but no changes when booting the fresh compiled kernel. omapfb still wants to come up.

• so my final question: how do i define the default framebuffer driver for an android kernel?

thank you for any suggestions to this :-)

You can try to disable omapfb in your kernel. In make menuconfig:

-> Device Drivers
 -> Graphics support
  -> OMAP2/3 Display Subsystem support (EXPERIMENTAL)

Disable the last option.

Also, be sure that udlfb is enabled by default (ie not in module).