Re: bktr(4) risk?

On Mon, Oct 09, 2006 at 04:26:50PM -0700, John-Mark Gurney wrote:
Jonathan Chen wrote this message on Mon, Oct 09, 2006 at 17:37 -0400:
The only reason I can think of to use this ioctl would be if you wanted the
image you're capturing to be directly dumped into video memory. This

This is very common... It allows the bktr driver to dump the frames
directly to the memory of your video card... This makes watching live
tv watchable...

Yes, how stupid of me to not think of people wanting to just watch a live
feed from their capture card...

doesn't seem too useful a task for a video capture card to be doing.
Perhaps we should put a test for write access in there or just eliminate
the ioctl altogether. It should be noted that the meteor driver had this
ioctl ifdef'ed out prior to its removal.

Hmmm... I think I'll go ahead and put in a compatibility ioctl based
on the way I did the zoran driver, and schedule the removal of the
ioctl..

Zoran driver? Can I have a pointer or a summary of what you did there so I
can do the same to meteor(4)?

-Jon
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