If I have a camera on the usb port (OS : Windows Server 2008/ Windows 7) and a C# program is streaming the image frames and doing some image processing, can I consider that the images coming from the USB camera is at real-time and will not be hanging when the processor is busy doing something else?
Peter, Thanks for you answers. If we get into the details...... all the IO devices are one or the other way connected to the BUS of the Motherboard. And yes all the interrupts are buffered. I guess the kernel has its own way of handling the buffers and interrupts. If there are interrupts with high priority then the processor will handle the high priority first and then the lower one. Now if the Camera has an interrupt lower, then there are chances that the processor will be handling the interrupts with higher priorities ..... and may be for longer time..... during this time there are chances that the camera will run out of buffer and can loose frames also.... ( Given condition is the Processor is at very high utilization). Also it will be very appreciable if you give us more details on the "root hub".
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