Tested with/on Linux 5.0.x using GCC 7.4.x compiler series If modules are enabled (which in turn enables CONFIG_MEDIA_ATTACH) the dvb_attach codepath fails regardless of module load or compiling in any or all components with this message: DVB: Unable to find symbol r820t_attach() Disabling CONFIG_MODULES (which in turn disables CONFIG_MEDIA_ATTACH and turns dvb_attach into a no-op that blindly calls the function requested) does work. I'm unsure if this is a flaw in the dvb_attach macro or the driver's usage of this macro, so I'm sending this to both the relevant maintainers. - Wolf