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Posts: 992 | Thanked: 995 times | Joined on Dec 2009 @ California
#865
Originally Posted by javispedro View Post
So basically there's NO changes other than enabling the charge pump? Dang it, so my supposed self-powered hub is a not as selfpowered as I though...
Yet another changes to avoid whitelist and blacklist problems.

EDIT: I do not enable charge pump, it is impossible (read joerg). But to work as HOST some VBUS voltage is needed (read blue_led) and TWL4030 is an obvious candidate. I don't know - is it possible to use VBUS from 1707 chip (a real USB PHY) because checking it requires too much change in code - driver actively works with 1707 registers and intermixing both is difficult to predict.

And of course - the procedure... it is not suitable for normal use because it requires PC initially. I am working on that stuff right now, and first - try to use FORCE_HOST. However, it is not simple as a success experiment, it doesn't see anything at all, so I am looking into code and acquiring logic.

BTW, if joerg is successfull in setting VBUS charge voltage and workaround BME intervention it could be a solution for non-selfpowered hubs/HDs. I did an experiment with his command (first version) and it seems it works, at least until DSME shutdowns N900. I stopped do it for now because fast shutdown does too much confusion in results and I can't go far enough until mounting USB stick.

Last edited by egoshin; 2010-05-14 at 16:49. Reason: syntax
 

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