DRM_FB_HELPER_INITIA(9) DRM Internals DRM_FB_HELPER_INITIA(9)NAMEdrm_fb_helper_initial_config - setup a sane initial connector
configuration
SYNOPSIS
bool drm_fb_helper_initial_config(struct drm_fb_helper * fb_helper,
int bpp_sel);
ARGUMENTS
fb_helper
fb_helper device struct
bpp_sel
bpp value to use for the framebuffer configuration
DESCRIPTION
Scans the CRTCs and connectors and tries to put together an initial
setup. At the moment, this is a cloned configuration across all heads
with a new framebuffer object as the backing store.
Note that this also registers the fbdev and so allows userspace to call
into the driver through the fbdev interfaces.
This function will call down into the ->fb_probe callback to let the
driver allocate and initialize the fbdev info structure and the drm
framebuffer used to back the fbdev. drm_fb_helper_fill_var and
drm_fb_helper_fill_fix are provided as helpers to setup simple default
values for the fbdev info structure.
RETURNS
Zero if everything went ok, nonzero otherwise.
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 DRM_FB_HELPER_INITIA(9)
