Re: using a web camera

[Angelo Moreschini <mrangelo.fedora@xxxxxxxxx>]

Hi.

the problem is solved, now, by using of a different vweb camera :-).
.
However, I read at  http://www.tldp.org/HOWTO/html_single/Webcam-HOWTO/#HARDWARE,   that to use a Web camera need to exist a video device in /etc directory... (/ dev / video0).
In my previous attempts I tried this way without success ..., and now I can also  see that the web camera works perfectly even without the video node (the file / dev / video0).

I understand what are the device nodes, and now, I would like to understand because the web camera it can work without this  file (i.e I'd like to understand how things go exactly.).

Any help to understand this matter will be appreciated.

Than you

Angelo

On Sun, Aug 28, 2016 at 11:05 AM, Angelo Moreschini <mrangelo.fedora@xxxxxxxxx> wrote:

thank you for answering me.

No I haven't Kamerka;
my distro is Fredora (21) and there is (for default) a program that is named cheese ...

-----

the command "lsusb" give me
Bus 003 Device 007: ID 0ac8:305b Z-Star Microelectronics Corp. ZC0305 Webcam

         or
 Bus 003 Device 008: ID 058f:3881 Alcor Micro Corp.

(.....I have two "cameras".....)

----------------------
if I use the camera:
Bus 003 Device 007: ID 0ac8:305b Z-Star Microelectronics Corp. ZC0305 Webcam

I can see images inside cheese (the program) but I cannot fix the image inside the same  program (cheese)  when I press the button for grasp the image.

if I use the other camera nothing is displayed on the window of the program (cheese)  .

I looked for drivers , and the command :
sudo find /lib/modules -name "*cam.ko*"

give me this output :
/lib/modules/3.17.4-301.fc21.x86_64/kernel/drivers/media/usb/stkwebcam/stkwebcam.ko.xz
/lib/modules/3.17.4-301.fc21.x86_64/kernel/drivers/media/usb/gspca/gspca_vicam.ko.xzI'm


I'm thinking, now, that the malfunction could depend only on the poor quality of web'cameras.

I'll buy a better camera before to continue the troubleshooting..

thank you

Angelo

 

On Sat, Aug 27, 2016 at 10:13 PM, Doug <dmcgarrett@xxxxxxxxxxxxx> wrote:

On 08/27/2016 11:05 AM, Angelo Moreschini wrote:

Hi,


I am trying to set my computer to use a web camera (this function doesn't work actually with cheese, for example).

With this program (cheese) I can see images by the camera, but when I shot an image, then the image that appears in the window of shot images is blank...


I read the document The Webcam HOWTO (at http://www.tldp.org/HOWTO/html_single/Webcam-HOWTO/) and I tried to do what wrote there,   but I hadn't success...


Can I get an concrete help to achieve my purpose ?


Thank you

Angelo

Does your distro have a program called Kamerka? That works perfectly in PCLOS. Judging by the name, it is designed to work in a KDE environment. That doesn't mean it won't

work with whatever desktop environment you're using.  I Googled for the name and found this:  http://dos1.github.io/kamerka/   which points to a download location.

--doug

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