Re: cfb_fillrect and friends undefined

["Antonino A. Daplas" <adaplas@gmail.com>]

Richard Wolf wrote:
> Hi,
> 
> I'm trying to write a frame buffer driver, basing it on the vfb virtual
> driver.  When I try to load the module I get an error message:
> 
> lh155ba: Unknown symbol platform_driver_unregister
> lh155ba: Unknown symbol cfb_copyarea
> lh155ba: Unknown symbol platform_device_register
> lh155ba: Unknown symbol platform_driver_register
> lh155ba: Unknown symbol platform_device_unregister
> lh155ba: Unknown symbol cfb_imageblit
> lh155ba: Unknown symbol cfb_fillrect
> 
> I can't work out what config options to enable to define these symbols.  I
> can get cfb_* to appear by selecting the vfb driver, but I don't want that
> driver, just the cfb_* functions.  Any help?

Add:

select FB_CFB_IMAGEBLIT
select FB_CFB_COPYAREA
select FB_CFB_FILLRECT

in drivers/video/Kconfig (under your driver, of course).

As for the platform_*, add #include <linux/platform_device.h>

Tony

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