mambasoft/2.6.38.3-hannspad — comment on commit a11cd3a0554c8685ea7c875c1b2ea684a2e9df42
File:  line 0
By imayoda:

the point is: hannspad has 7,4V battery so it's reasonable to think they have included some circuitry to regulate down and 5V some power on otg (otg standard itself has to apply some power to be real otg).. it's strange having otg without power; quite useless for normal users..
but i can't be sure on hw becuse what i think it's a power circuitry is made with micro smd components and no hints on them.. but it looks like