[Linux-uvc-devel] Accessing Extension Units
NathanaelGalpin at smarttech.com
Fri Aug 17 18:48:45 CEST 2007
I'm testing some cameras right now, and I'd like to be able to access
the controls in the camera's extension unit. I've spent some time this
last week looking at the driver and attempting to add the controls in,
but I haven't been successful. What steps do I need to take to get the
driver to recognize these controls?
So far I've added a GUID for the camera's extension unit, as well I've
added entries to the uvc_ctrl and uvc_ctrl_mappings lists. I've written
a test application using the V4L2 API to enumerate the controls on the
camera, and it does see a new control, but I'm not able to use that
control. It seems like I'm missing something to associate the control
with the camera it belongs to.
Hopefully that makes sense, at this point I'm not looking for a really
elegant solution, I'd just like to hard code it into the driver to do
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