Re: Getting a hook from shell mode to do motion detection?

I guess capture.c isn't exactly self-contained:
preview.c:(.text+0x4c): undefined reference to `sample_create_context'
preview.c:(.text+0xbc): undefined reference to `canon_enable_capture'
preview.c:(.text+0xd0): undefined reference to `camera_eosviewfinder'
preview.c:(.text+0x1b0): undefined reference to `camera_auto_focus'
preview.c:(.text+0x1c4): undefined reference to `camera_auto_focus'
preview.c:(.text+0x204): undefined reference to `camera_manual_focus'
preview.c:(.text+0x2e4): undefined reference to `camera_eosviewfinder'

So I guess I'll have to write some placeholders at least to use it.
The Lunkwill stuff is still online from 8 years ago but I don't see
them there.  Or I probably should take out the missing stuff and only
put in what I need.  I went to preview.c first because I want to see
how feasible capturing previews and handing them off to my motion
detection is going to be.

It seems wasteful to go through compressing each one to a JPEG and
uncompressing it again but I suppose the camera's firmware dictates
that.

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