Hi, I am new to V4L2 kernel framework. And currently trying to understand V4L2 kernel sub-system. In videobuf2 sub-system, before calling 'vb2_queue_init(q)', q's mem_ops is being initialized (depending on type of buffer) as q->mem_ops = &vb2_vmalloc_memops; or q->mem_ops = &vb2_dma_contig_memops What is the purpose of these memory operations? If user space is allocating the buffer (physically contiguous) via some other kernel driver (hwmem - for android). Even then do we need to set mem_ops = vb2_dma_contig_memops? Thanks, Chetan Nanda -- 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
