Re: How to detect USB camera disconnection?
Jean-Francois Moine <[email protected]>
| Newsgroups | gmane.comp.video.video4linux |
|---|---|
| Message-ID | <20090821103925.038c98ce@tele> |
On Thu, 20 Aug 2009 13:54:26 -0300 "Nilo Roberto C Paim" <[email protected]> wrote: > 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. > > --- > I'd forgot to say: the driver I'm using is gspca, last > version. Works like a charm. My problem is related to cable's cam > disconnected. Hi Nilo, I don't know how you poll. Normally, when the webcam is disconnected, the I/O calls should fail with errno = NODEV. Cheers. -- Ken ar c'hentañ | ** Breizh ha Linux atav! ** Jef | http://moinejf.free.fr/ -- video4linux-list mailing list Unsubscribe mailto:[email protected]?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list