libcamera/libcamera.git - libcamera official repository

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adata passed from userspace for * allocations * @len: size of the allocation * @fd: will be populated with a fd which provides the * handle to the allocated dma-buf * @fd_flags: file descriptor flags used when allocating * @heap_flags: flags passed to heap * * Provided by userspace as an argument to the ioctl */ struct dma_heap_allocation_data { __u64 len; __u32 fd; __u32 fd_flags; __u64 heap_flags; }; #define DMA_HEAP_IOC_MAGIC 'H' /** * DOC: DMA_HEAP_IOCTL_ALLOC - allocate memory from pool * * Takes a dma_heap_allocation_data struct and returns it with the fd field * populated with the dmabuf handle of the allocation. */ #define DMA_HEAP_IOCTL_ALLOC _IOWR(DMA_HEAP_IOC_MAGIC, 0x0,\ struct dma_heap_allocation_data) #endif /* _LINUX_DMABUF_POOL_H */


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