How to detect USB camera disconnection?

"Nilo Roberto C Paim" <[email protected]>
Newsgroups gmane.comp.video.video4linux
Message-ID <002601ca21a5$c0cc10c0$42643240$@com> 
Hi, all.

 

I've a Vimicro USB cam that I'm constantly pooling for taking snapshots
using an application made by me. How can I programmatically detect when the
cam is disconnected?

 

It seems to me that V4L "thinks" that the cam is still there, even with the
cable disconnected.

 

Any hints?

 

Nilo Roberto C Paim

[email protected]

TinyCOBOL - Equipe de Desenvolvimento 

Porto Alegre - RS - Brasil

 

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