Scroll to navigation

DRM_FB_HELPER_HOTPLU(9) DRM Core DRM_FB_HELPER_HOTPLU(9)

NAME

drm_fb_helper_hotplug_event - respond to a hotplug notification by probing all the outputs attached to the fb

SYNOPSIS

int drm_fb_helper_hotplug_event(struct drm_fb_helper * fb_helper);

ARGUMENTS

fb_helper
the drm_fb_helper

DESCRIPTION

Scan the connectors attached to the fb_helper and try to put together a setup after *notification of a change in output configuration.
Called at runtime, takes the mode config locks to be able to check/change the modeset configuration. Must be run from process context (which usually means either the output polling work or a work item launched from the driver's hotplug interrupt).
Note that the driver must ensure that this is only called _after_ the fb has been fully set up, i.e. after the call to drm_fb_helper_initial_config.

RETURNS

0 on success and a non-zero error code otherwise.

AUTHORS

Jesse Barnes <jesse.barnes@intel.com>
 
Intel Corporation,
Initial version
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 
Ideas on board SPRL,
Driver internals
Daniel Vetter <daniel.vetter@ffwll.ch>
 
Intel Corporation,
Contributions all over the place

COPYRIGHT

May 2018 Kernel Hackers Manual 3.16