[pwc] Auto Shutter and v4l2

[Hugo Filipe Costelha De Castro <>]

Hi,

I am using a Philips Toucam Pro 740k.

I see I can set the shutter speed using v4l2 control call  and
V4L2_CID_EXPOSURE. But how can I set the shutter to automatic? Usually we
would use the value -1 for automatic setting, but according to pwc-v4l.c,
the minimum value of V4L2_CID_EXPOSURE is 1.

Is there a way to do it using v4l2 calls, or do I need to use private pwc
call with VIDIOCPWCSSHUTTER ?

Thanks for the help.

Hugo Costelha

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