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
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