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The Linux kernel configuration item CONFIG_V4L_MEM2MEM_DRIVERS
has multiple definitions:
drivers/media/platform/Kconfig
The configuration item CONFIG_V4L_MEM2MEM_DRIVERS:
CONFIG_VIDEO_DEV
Say Y here to enable selecting drivers for V4L devices that use system memory for both source and destination buffers, as opposed to capture and output drivers, which use memory buffers for just one of those.
drivers/media/video/Kconfig
The configuration item CONFIG_V4L_MEM2MEM_DRIVERS:
CONFIG_VIDEO_V4L2
Say Y here to enable selecting drivers for V4L devices that use system memory for both source and destination buffers, as opposed to capture and output drivers, which use memory buffers for just one of those.
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