Hallo Josef, thanks for your tips. I went through the code and found the dwc3 driver which uses `module_platform_driver`. In the source it gets called with `module_platform_driver(dwc3_driver)` and the declaration in Genode is `extern "C" void module_dwc3_driver_init();`. The efifb framebuffer driver I try to include gets called with `module_platform_driver(efifb_driver)` so the corresponding declaration should be `extern "C" void module_efifb_driver_init();`. I tried both the macros of 'repos/dde_linux/src/lib/usb/include/spec/arm/platform/lx_emul.h' as you said and of 'repos/dde_linux/src/lib/usb/include/lx_emul.h' (which gets included by 'repos/dde_linux/src/lib/usb/spec/arndale/platform.cc' which uses the dwc3 driver. None of these macros worked, I always got a undefined reference error from the linker. Did I miss something?
Regards, JK Am 26.04.2017 um 15:45 schrieb Josef Söntgen: > Hello Johannes, > > * Johannes Kliemann <johannes.kliem...@tu-dresden.de> [2017-04-26 15:00:35 > +0200]: >> how are modules in dde_linux loaded exactly? For example the i915 driver >> seems to be loaded with `module_i915_init` which somehow connects to >> `module_init(i915_init)` but I can't see how this is done. > > Please take a look at 'repos/dde_linux/src/include/lx_emul/module.h' > which defines the macros used by the vanilla sources. In this case > we just generated a function that can be called directly. > >> I want to add a new driver which is loaded by >> `module_platform_driver(...)`. What steps are required to add this >> driver besides adding the declaration in main.cc? > > Until now the usb_drv on ARM was the only dde_linux driver that needed > this macro, hence it is defined in its private Linux emulation header > (see 'repos/dde_linux/src/lib/usb/include/spec/arm/platform/lx_emul.h'). > Normally we only move definitions or rather emulation code to the somewhat > generic lx_kit/lx_emul locations if used by more than one driver. > > For now I suggest to implement the macro privately in the intel_fb > driver as well and we will come up with a better solution later on. > > > Regards, > Josef > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ genode-main mailing list genode-main@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/genode-main
