STRUCT DRM_FB_HELPER(9) DRM Internals STRUCT DRM_FB_HELPER(9)NAMEstruct_drm_fb_helper_funcs - driver callbacks for the fbdev emulation
library
SYNOPSIS
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);
};
MEMBERS
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. Futhermore it also needs to allocate the drm framebuffer
used to back the fbdev.
initial_config
Setup an initial fbdev display configuration
DESCRIPTION
Driver callbacks used by the fbdev emulation helper library.
AUTHORS
Jesse Barnes <jesse.barnes@intel.com>
Intel Corporation,
Initial version
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Ideas on board SPRL,
Driver internals
COPYRIGHTKernel Hackers Manual 3.11 November 2013 STRUCT DRM_FB_HELPER(9)
