[GIT PULL FOR v3.10] v4l2: add const to argument of write-only s_register ioctl

It's identical to: http://comments.gmane.org/gmane.linux.drivers.video-input-infrastructure/62324 except it's rebased and the ivtv changes have been simplified. Regards, Hans The following changes since commit 27d5a87cf4b44cbcbd0f4706a433e4a68d496236: [media] v4l2-ioctl: add precisi

[GIT PULL FOR v3.10] v4l2: add const to argument of write-only s_register ioctl.

It's identical to: http://comments.gmane.org/gmane.linux.drivers.video-input-infrastructure/62324 except it's rebased and as requested by Mauro the cx18 and ivtv changes have been split off to their own patches. I did not change the volatile part, changing that is a completely separate issue and