Hi Hans, Am Montag, den 03.11.2014, 14:38 +0100 schrieb Hans Verkuil: > Hi Philipp, > > I've been playing with this and I cannot make it work. One thing that is missing > in this patch is that the device struct isn't passed to v4l2_device_register. > Without that the vb2 allocation context will actually be a NULL pointer. > > But after fixing that and a few other minor things (see this branch of mine: > git://linuxtv.org/hverkuil/media_tree.git vivid) it still won't work because > dma_alloc_coherent fails and that's because the device is not DMA capable. Thanks you. Unfortunately I don't have experience with coherent dma on x86 either, I've only tested this on ARM with CMA. I suspect a missing call to dma_set_mask_and_coherent in the probe function be the issue? regards Philipp -- 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
