On Tue, Aug 18, 2015 at 02:54:02PM -0700, Eric Anholt wrote: > VC4 is the GPU (display and 3D) subsystem present on the 2835 and some > other Broadcom SoCs. > ... > +Broadcom VC4 GPU > + > +The VC4 device present on the Raspberry Pi includes a display system > +with HDMI output and the HVS scaler for compositing display planes.
Is this a direct hw driver implementation, banging registers, or is this talking to the os/firmware/binary blob running on the videocore dsp? Luc Verhaegen.