troubleshooting Question

How can I cause a USB port to drop its power line for a time?

Avatar of Duncan Roe
Duncan RoeFlag for Australia asked on
Windows XPVisual Basic.NETEmbedded Hardware
22 Comments2 Solutions2680 ViewsLast Modified:
Sometimes we need to hard-reset a USB modem by dropping power to it for, say, 10 seconds (to let the 0.1Farad capacitor fully discharge). Physically unplugging works but will not be available once the systems are installed. Is there any way to command the USB port to lower its power supply line?

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