Hi Steve, It turns out that the daily build never compiled the staging media drivers, which included imx. Now that I enabled it I get these three errors: drivers/staging/media/imx/imx-media-vdic.c:236 prepare_vdi_in_buffers() error: uninitialized symbol 'prev_phys'. drivers/staging/media/imx/imx-media-vdic.c:237 prepare_vdi_in_buffers() error: uninitialized symbol 'curr_phys'. drivers/staging/media/imx/imx-media-vdic.c:238 prepare_vdi_in_buffers() error: uninitialized symbol 'next_phys'. Can you take a look? The root cause is that the switch doesn't have a default case. I expect that this is easy to fix, but I'm not sure what the fix should be, otherwise I would have made a patch for you. Regards, Hans