Hello, I intend to use cobalt driver as a refence for new pci v4l2 driver, which is required to use several input simultaneously. for this cobalt seems like a best starting point. read/write streaming will probably be suffecient (at least for the dirst debugging). The configuration in my cast is i7 core <-- pci ---> fpga. I see that the dma implementation is quite complex, and would like to ask for some tips regarding the following points related to dma issue: 1. Is it possible to do the read/write without dma (for debug as start) ? What changes are required for read without dma (I assume dma is used by default in read/write) ? Is it done by using #include <media/videobuf2-vmalloc.h> instead of #include <media/videobuf2-dma*> ? 2. I find it difficult to unerstand cobalt_dma_start_streaming() implementation, which has many specific cobalt memory writing iowrite32(). How can I understand how/what to implement dma in my specific platform/device ? Best Regards, Ran -- 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
