DRM_FB_HELPER_HOTPLU(9) DRM Internals DRM_FB_HELPER_HOTPLU(9)NAMEdrm_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
COPYRIGHTKernel Hackers Manual 3.11 November 2013 DRM_FB_HELPER_HOTPLU(9)