Remove last bits of V4L1 dependant code

From: Mike Isely <isely@pobox.com>

With the removal of the V4L1 API, we also lose the functionality
provided by the video_get_drvdata() and video_set_drvdata() functions.
These functions had made it possible for a driver to stuff a pointer
to its own context inside the V4L device handle context - a useful
ability.  However now that's going away, so the driver is on its own
to find its context when called into from a more generic context
(e.g. the open() entrypoint).  The changes in this patch implement a
global context mapping array, an array index back-reference per
instance, and a new global mutex to protect the entire thing.  The
array is indexed by the minor device id of the V4L device inode.  All
this fun is present to work around what used to be roughly 4 lines of
code.  Sigh...

Signed-off-by: Mike Isely <isely@pobox.com>

0 files changed, 0 insertions, 0 deletions