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no /dev/fb0 frame buffer device

John Liu1
Prodigy 150 points

Hi,

 I am working on Pandaboard ES Rev B2, got the uImage and configure file(omap4_mipi_defconfig) for building uImage from e-con systems with OV5640 camera. First, I loaded the uImage and test the camera, "Can not open fb0 device", then I check the /dev, no fb0 device is found. i used the omap4_mini_defconfig to build the uImage, I stil  could not  found the fb0 device, I checked the made process, the file fb_notify.o, fbmem.o fbmon.o fbcmap.o fbsysfs.o fbcvt.o fb.o files were built. seems the framebuffer device is enabled in configure file. what happen?

any idea?

Thanks ahead!

John

  • 0
    TI__Mastermind 29520 points

    Hello John,

    I suggest to look these wikis:

    - http://omappedia.org/wiki/Bootargs_for_enabling_display    - Bootargs for enabling display

    - http://omappedia.org/wiki/Display_Drivers_Domain_Wiki      - Display Drivers Domain Wiki

    I think that it is necessary to make changes in the file - /kernel/android-3.4/arch/arm/mach-omap2/board-omap4panda.c. It can enable the support of new external devices attached to Panda board. 

    Best regards,

    Yanko