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>> You seem to be right on here Dale. usbview showed my printer |
| 2 |
>> connected to the 2.0 controller and a webcam connected to the 1.1 |
| 3 |
>> controller, so I unplugged the printer and plugged the webcam into |
| 4 |
>> it's slot and it still showed up under 1.1. So there doesn't appear |
| 5 |
>> to be any slot/controller correlation. |
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>> |
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>> This is a problem for me though. My webcams can't both operate on the |
| 8 |
>> 1.1 controller at the same time due to the bandwidth limitation of the |
| 9 |
>> 1.1 controller. I need them both on 2.0 or one on each controller, |
| 10 |
>> but they are always grabbed by the 1.1 controller. Even worse, I |
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>> disabled support for 1.1 in the kernel so only 2.0 was supported and |
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>> the webcams didn't show up at all. Could they be USB 1.1 only? |
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>> Shouldn't a 1.1 device operate on a 2.0 controller? |
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>> |
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>> - Grant |
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>> |
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>> |
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>> |
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> |
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> |
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> This is how I understand it. Any 2.0 device should work with the older |
| 22 |
> 1.0 version, just slower. Backwards compatible. However, like with my |
| 23 |
> camera, if the device is a version 1.0, it will only work in 1.0 mode. |
| 24 |
> If you recently purchased this, you may want to exchange it and make |
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> sure you get a 2.0 version. That is if there is such a creature. |
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> |
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> The reason behind this is the chip inside the camera/webcam itself. The |
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> cable can cause this if it is not made for the new higher bandwidth or |
| 29 |
> is crappy but if the chip in there is the old 1.0 version, it can't go |
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> any faster. |
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> |
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> Another idea, you may be able to get a card to expand your USB ports and |
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> see if that will help. Each card has its own chip as well. Put one |
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> device on the card and one on the mobo port. That way they are seen and |
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> controlled by separate chips. That should help with the bandwidth |
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> problem at least. |
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> |
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> Dale |
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|
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I'm looking at the box of one of the webcams and it says "USB 2.0 |
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compatible". It's not a cable problem because the cable is built |
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right into the webcam. I'm not trying to get the webcam to go faster |
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back and forth to the controller, I just need to make sure I don't |
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have both webcams on the same OHCI (1.1) USB controller. I would |
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think buying a USB expansion card would work, but I have an EHCI (2.0) |
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controller on this system and a second OHCI (1.1) controller. |
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|
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Does anyone have any idea on this. It really doesn't make sense. |
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|
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- Grant |
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