Thanks. I try the latest (I clone linux from https://github.com/torvalds/linux) and do 'make ARCH=arm CROSS_COMPILE=/usr/bin/arm-linux-gnueabi- imx_v6_v7_defconfig' again, I see " CONFIG_V4L2_MEM2MEM_DEV=y" in the generated .config. But when I try to add 'CONFIG_VIDEO_SAMSUNG_S5P_JPEG=y' to imx_v6_v7_defconfig and re'make, I don't see CONFIG_VIDEO_SAMSUNG_S5P_JPEG=y in the generated .config. I have looked up Kconfig and find out the dependency is: config VIDEO_SAMSUNG_S5P_JPEG tristate "Samsung S5P/Exynos4 JPEG codec driver" depends on VIDEO_DEV && VIDEO_V4L2 && PLAT_S5P select VIDEOBUF2_DMA_CONTIG select V4L2_MEM2MEM_DEV ---help--- This is a v4l2 driver for Samsung S5P and EXYNOS4 JPEG codec I have checked that both VIDEO_DEV && VIDEO_V4L2 are set, except PLAT_S5P. I am not sure how to set 'PLAT_S5P'. I appreciate if I can get help on this. Thank you. On Mon, Jan 6, 2014 at 1:30 PM, Fabio Estevam <festevam@xxxxxxxxx> wrote: > On Mon, Jan 6, 2014 at 7:22 PM, m silverstri > <michael.j.silverstri@xxxxxxxxx> wrote: >> I have added 'CONFIG_V4L2_MEM2MEM_DEV=y' to my 'imx_v6_v7_defconfig' >> and do a "make ARCH=arm CROSS_COMPILE=/usr/bin/arm-linux-gnueabi- >> imx_v6_v7_defconfig", I don't see CONFIG_V4L2_MEM2MEM_DEV being set to >> 'y' in .config that was automatically generated. >> >> I think I am making changes to the right 'imx_v6_v7_defconfig' file >> since when i add >> 'CONFIG_V4L_TEST_DRIVERS=y' to 'imx_v6_v7_defconfig', I see >> 'CONFIG_V4L_TEST_DRIVERS=y' in .config when I do "make ARCH=arm >> CROSS_COMPILE=/usr/bin/arm-linux-gnueabi- imx_v6_v7_defconfig" >> >> I am not sure why CONFIG_V4L2_MEM2MEM_DEV is not being set when I put >> 'CONFIG_V4L2_MEM2MEM_DEV=y' > > Can you try the latest 3.13-rc7? > > I just tried it here: > > make imx_v6_v7_defconfig > > Then I inspect the generated .config and CONFIG_V4L2_MEM2MEM_DEV=y > > Regards, > > Fabio Estevam -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html