Thanks. Can you please help me understand what you mean by 'make this to build into kernel instead of static'? On Thu, Jan 9, 2014 at 7:18 PM, Ashokkumar G <ashok.sysprogrammer@xxxxxxxxx> wrote: > Dear Silverstri, > > I am not sure for which platform you are compiling Kernel. > > But for X86(_64) and ARM, CONFIG_VIDEOBUF2_CORE will be selected as a module > (will not build into kernel image static), this is the dependency > VIDEOBUF2_DMA_CONTIG [=m] && MEDIA_SUPPORT [=m] && HAS_DMA [=y] || > VIDEOBUF2_VMALLOC [=m] && MEDIA_SUPPORT [=m] || VIDEOBUF2_DMA_SG [=n] && > MEDIA_SUPPORT [=m] || SOC_CAMERA [=m] && MEDIA_SUPPORT [=m] && > V4L_PLATFORM_DRIVERS [=y] && VIDEO_V4L2 [=m] && HAS_DMA [=y] && I2C [=y]. > > select MEDIA_SUPPORT and SOC_CAMERA to build into kernel image static (when > you select one of MEDIA_SUPPORT/SOC_CAMERA/VIDEO_V4L2 as build static into > kernel, .config will have CONFIG_VIDEOBUF2_CORE=y instead of > CONFIG_VIDEOBUF2_CORE=m) > > For ARM board I used Device Drivers->Multimedia Support (make this to build > into kernel instead of static)->V4L platform devices (make this to build > into kernel instead of static)->Soc Camera Support(make this to build into > kernel instead of static). > > -- > Best Regards > Ashokkumar.G > 100 Things can not be taken back. 001. A lost opportunity. 010. A spoken > word. 011. A sped arrow. 100. Time spent. > > > On Thu, Jan 9, 2014 at 7:16 PM, m silverstri > <michael.j.silverstri@xxxxxxxxx> wrote: >> >> I am using 3.10.x kernel tree. My kernel module needs config VIDEOBUF2. >> >> That is defined in drivers/media/v4l2-core/Kconfig: >> >> # Used by drivers that need Videobuf2 modules >> config VIDEOBUF2_CORE >> select DMA_SHARED_BUFFER >> tristate >> >> So I put 'CONFIG_VIDEOBUF2_CORE=y' in my Kernel config file and >> compile. From the Kconfig it has CONFIG_VIDEOBUF2_CORE has no >> dependency and I think adding CONFIG_VIDEOBUF2_CORE=y to my kernel >> config should work. I am modify the right kernel config file since I >> set other flags like CONFIG_VIDEO_DEV=y and that works. >> >> The generated .config does not contain 'CONFIG_VIDEOBUF2_CORE=y' >> >> and the compilation fails with a bunch of >> >> undefined reference to `vb2_buffer_done' >> undefined reference to `vb2_buffer_done' >> undefined reference to `vb2_buffer_done' >> undefined reference to `vb2_buffer_done' >> >> I really appreciate if someone can help me with this. >> >> Thank you. >> >> _______________________________________________ >> Kernelnewbies mailing list >> Kernelnewbies@xxxxxxxxxxxxxxxxx >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
