Why do you need a valid driver to charge a device via USB?
Fresh3 days ago
Mar 15, 20263664 viewsConfidence Score0%
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Problem
Disclaimer: While this question is about my smartphone and hence may be considered off-topic, I'm hoping the more general issue (which could apply to other USB devices) can be answered in this forum. My work PC was recently upgraded to Windows 7 64-bit edition. I have a Palm Treo 680 smartphone and…
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USB
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Fix for: Why do you need a valid driver to charge a device via USB?
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By default, a device is only allowed to draw up to 100mA from a USB port, and must negotiate with the host if it needs to draw more. Maybe your device is implemented in a way that does not allow for power negotiation until a driver has taken control…
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