Thread: Looking for code cal-tool
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Luna is offline Luna
2006-08-28 , 10:59
Posts: 125 | Thanked: 1 time | Joined on Aug 2006
#5
Originally Posted by fanoush
as for the otg, I'm not sure what features you want (usb mode _can_ be switched on the fly), but the hardware really is 'crippled' in the sense that there is no source of 5V which is needed for host mode.
How has the 'crippled' hardware theory been verified? Since the vbus state is constantly monitored(tahvo/vbus) then we know that the line is wired to the TI. The OMAP is OTG compliant, so it sounds reasonable that we just have a partially implemented host in the tahvo driver(src seems AWOL too) or it requires the cable select option for host determination. The 5v injector we use could be just fooling the HNP. Just hopes...


add:
More explanation, since 2 host can be connected an powerconservation is a prime concern, 5v alway on the vbus is not a good thing. I hope the 770 is just taking a conservative role
Last edited by Luna; 2006-08-28 at 11:07.