Andreas, Would this be for using X shared memory segments with the uvcdriver ?
Adrian ----- Original Message ---- From: Andreas Auer <a.a...@zydacron.com> To: linux-uvc-de...@lists.berlios.dea Sent: Fri, 28 May, 2010 12:08:19 Subject: [Linux-uvc-devel] UVC userpointer streaming (memory mapping) Hi, I'm trying to get user pointer streaming with UVC webcams working. I already got a patch from Laurent Pinchart (thanks) which enables user pointer streaming. This patch works if I pass malloc()'d memory to the driver. My problem is that I want to use mmap()'d memory (via /dev/mem) and this type of memory (flags VM_IO and VM_PFNMAP are set) is not supported to be used with get_user_pages to map the memory to the kernel space. So, is there another way to map the pages into the kernel space to be used for user pointer streaming?? I had a look at kmap (kmap_atomic)... would this be possible?? Thanks, Andreas _______________________________________________ Linux-uvc-devel mailing list Linux-uvc-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/linux-uvc-devel _______________________________________________ Linux-uvc-devel mailing list Linux-uvc-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
