Hi, I create DMA buffer in my kernel driver. I would like to know what is cache coherency guidelines for DMA buffer referred by this post? http://stackoverflow.com/questions/5564326/linux-kernel-device-driver-to-dma-into-kernel-space Both my kernel driver and HW writes to the DMA buffer. I wnat to know how to make sure cache coherency. Thank you. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies