# This rule grants the `video` group access to GPIO the `dma_heap` subsystem.
# This facilitates video streaming using the Raspberry Pi camera module.
SUBSYSTEM=="dma_heap",KERNEL=="linux*",GROUP="video",MODE="0660"
SUBSYSTEM=="dma_heap",KERNEL=="reserved",GROUP="video",MODE="0660"
SUBSYSTEM=="dma_heap",KERNEL=="system",GROUP="video",MODE="0660"