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SRP OTG
by kiru2006 on Feb 10, 2013 |
kiru2006
Posts: 2 Joined: Aug 19, 2011 Last seen: Mar 5, 2013 |
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1)If device is OTG capable,at initial stage(at connect detection stage) should device perform SRP? Or device can perform SRP at suspend stage only ?
2)If OTG capable device is self powered,then after SRP whether otg capable device or host is going to drive VBUS?? Thanks Kiran |
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RE: SRP OTG
by ravivlsiii on Feb 28, 2013 |
ravivlsiii
Posts: 45 Joined: Jul 4, 2008 Last seen: Feb 8, 2014 |
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1)If device is OTG capable, at initial stage(at connect detection stage) should device perform SRP? Or device can perform SRP at suspend stage only?
Ans: (b_bus_req | adp_change | power_up) & b_ssend_srp & b_se0_srp) if this OTG B-Device State Machine condition satisfied then SRP possible. 2)If OTG capable device is self-powered, then after SRP whether otg capable device or host is going to drive VBUS? Ans: Yes, host will drive vbus. Thanks, Ravi |
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