On Sat, Apr 14, 2007 at 01:11:36PM +0200, Søren Hauberg wrote:
> Hi,
> I'm currently trying to get images from two cameras at once. Both cameras
> use the pwc driver. If I get images from one pwc-based camera, and one
> camera using another driver, things work just fine. But when I get images
> from two cameras that both depend on pwc, things freeze up on me (one camera
> gets one image, and then my program freezes).
> Is it possible to get images from two cameras both running the pwc driver
> at once? If not, what can I do to make it possible?
Yes it's possible but the usb bandwidth is shared between your two cameras.
Pwc camera can only use the Usb1.1 so it's limit to ~800Kbytes/s. When
displaying with two camera (or more), so you can try to:
- lower resolution
- enable compression (use a greater level)
- connect each camera on a different USB host controller
Luc
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