Messages in this thread | | | Date | Wed, 25 Apr 2012 11:05:27 +0300 | From | Felipe Balbi <> | Subject | Re: [PATCH 6/6] twl4030-usb: Don't report EVENT_ID when there is VBUS. |
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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 [unhandled content-type:application/pgp-signature] | |