Hi, On Wed, Apr 25, 2012 at 05:33:11PM +1000, NeilBrown wrote: > Some USB chargers tie the ID pin low via various resistors. > So they can cause VBUS to be high and ID to be low. > > The 'A' end of an OTG cable never receives VBUS, it only ever generates it. this isn't entirely true. Have you considered Accessory Charger Adapters ? > So if we see VBUS and are not generating it, this must be a charger, > not the A end of an OTG cable, so in that case, ignore the fact that > ID is low. wrong. -- balbi
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