SYNOPSIS

struct vga_switcheroo_client_ops {
void (* set_gpu_state) (struct pci_dev *dev, enum vga_switcheroo_state);
void (* reprobe) (struct pci_dev *dev);
bool (* can_switch) (struct pci_dev *dev);
};

MEMBERS

set_gpu_state

do the equivalent of suspend/resume for the card. Mandatory. This should not cut power to the discrete GPU, which is the job of the handler

reprobe

poll outputs. Optional. This gets called after waking the GPU and switching the outputs to it

can_switch

check if the device is in a position to switch now. Mandatory. The client should return false if a user space process has one of its device files open

DESCRIPTION

Client callbacks. A client can be either a GPU or an audio device on a GPU. The set_gpu_state and can_switch methods are mandatory, reprobe may be set to NULL. For audio clients, the reprobe member is bogus.

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

Lukas Wunner <lukas@wunner.de>

vga_switcheroo documentation

COPYRIGHT