struct_drm_fb_helper_funcs (9)

struct drm_fb_helper_funcs {
  void (* gamma_set) (struct drm_crtc *crtc, u16 red, u16 green,u16 blue, int regno);
  void (* gamma_get) (struct drm_crtc *crtc, u16 *red, u16 *green,u16 *blue, int regno);
  int (* fb_probe) (struct drm_fb_helper *helper,struct drm_fb_helper_surface_size *sizes);
  bool (* initial_config) (struct drm_fb_helper *fb_helper,struct drm_fb_helper_crtc **crtcs,struct drm_display_mode **modes,bool *enabled, int width, int height);
};

gamma_set

Set the given gamma lut register on the given crtc.

gamma_get

Read the given gamma lut register on the given crtc, used to save the current lut when force-restoring the fbdev for e.g. kdbg.

fb_probe

Driver callback to allocate and initialize the fbdev info structure. Furthermore it also needs to allocate the drm framebuffer used to back the fbdev.

initial_config

Setup an initial fbdev display configuration

Driver callbacks used by the fbdev emulation helper library.

Jesse Barnes <[email protected]>

Intel Corporation,

Initial version

Laurent Pinchart <[email protected]>

Ideas on board SPRL,

Driver internals

Daniel Vetter <[email protected]>

Intel Corporation,

Contributions all over the place