[vlc-devel] [PATCH] v4l2 userptr fix

[Richard Hosking]

Userptr IO buffers need to be aligned according to
the V4L2 reference capture c example (which has
been updated with this recently).

Also, the reference program has the device close
operations after the 'free' calls so they have
been moved.

This fixes the issue I was having with my device
crashing vlc on close.

Also fixed a typo in an error message and renamed
a local function which was badly named by me.

Richard.
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