Re: Accessing USB Camera pics
DSC Siltec wrote:
> Okay, I have Debian, Woody, Hotplug, USB, and a cheap junk USB camera.
>
> How do I access my pics? I'd really like three answers:
> (1) How to access them directly as files, if possible
> (2) Best way to download them as pictures, and save them
> (3) How to create nice compressed .mpgs from it (my camera supports 8
> seconds of movie, high res, 32 seconds low res.).
1 and 2 are your current issue. Let's not worry about 3 until you have
a way of getting the pictures off the camera and into your computer.
> Okay, got my USB up and running: hotplug installs via dselect, and
> will put a directory in /proc/bus/usb.
>
>
> I even found that, having created a "/camera" directory I can mount it
> manually to camera via
>
> mount -t usbdevfs /proc/bus/usb /camera
This can't be right. You don't mount your USB bus as a filesystem. You
might mount a particular USB device (which would be some device node
under /proc/bus/usb, or possibly somewhere else due to emulation
performed by the device's driver), but not the bus itself.
> Devices is a file that contains the following:
Devices is a virtual file created by the USB subsystem that describes
the USB devices currently connected to your machine. The interesting part
of your devices file is the following:
> T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=4 Spd=12 MxCh=0
> D: Ver=1.10 Cls=ff(vend.) Sub=00 Prot=00 MxPS=8 #Cfgs=1
> P: Vendor=0553 ProdID=0202 Rev=0.00
> S: Manufacturer=STMicroelectronics
> S: Product =USB Dual-mode Camera
> C:* #Ifs=1 Cfg#=1 Atr=a0 MxPwr = 70mA
> I: If#=0 Alt=1 #EPs=1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
> E: Ad=82(I) Atr=02(Bulk) MxPS=54 Ivl=0ms
This describes what the system knows about your camera. The two S: lines
show that the device describes itself as an STMicroelectronics USB
Dual-mode Camera. The end of the I: line says Driver=(none), which means
that your computer doesn't have a driver for that camera, or doesn't
know what driver to use for it.
A simple Google search for information on this camera found this page:
http://stv0680-usb.sourceforge.net
which is all about Linux support for this model of camera.
Craig
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