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maemo.org - Talk (https://talk.maemo.org/index.php)
-   Nokia N900 (https://talk.maemo.org/forumdisplay.php?f=44)
-   -   N900 will not allow USB OTG! (https://talk.maemo.org/showthread.php?t=31921)

testarc 2009-12-09 20:03
Re: N900 will not allow USB OTG!
 
Sarah ,have you try the test at the end of the dev pos http://maemo.org/community/maemo-dev..._power_charge/ :p

qole 2009-12-09 20:08
Re: N900 will not allow USB OTG!
 
Quote:
If i had an n900 in my hands, i would use the "mode" sysfs node of the musb driver, valid parameters are "host", "peripheral" and "otg". I'd switch it to the host mode and measured with DMM if there's power on the Vbus and checked the resistance between DM/DP and GND (should be ~15k). I'd connect what's lacking externally and tried attaching some mass-storage device or a mouse.
You can't switch the N900 to host mode via software. It will immediately switch back to "b_idle" from "host".

testarc et al: Seriously. Give it up. Unless you're an electrical engineer or a kernel hacker with an N900 to test with, you're probably not going to add anything new to this topic.

testarc 2009-12-09 20:17
Re: N900 will not allow USB OTG!
 
yes qole ... i'm a ***, but i'm too geek too :)
i let this thread , and stand a real reply from a good devlopper from the other thread i reference up, or from push project too.

have a nice hack :rolleyes:

twoboxen 2009-12-09 22:41
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by testarc (Post 419529)
yes qole ... i'm a ***, but i'm too geek too :)
i let this thread , and stand a real reply from a good devlopper from the other thread i reference up, or from push project too.

have a nice hack :rolleyes:
Was that english?

testarc 2009-12-10 07:21
Re: N900 will not allow USB OTG!
 
i'm a frenchy user .. haa yes , wine and bread :p

testarc 2009-12-11 08:36
Re: N900 will not allow USB OTG!
 
does anyboday has try the Mobidapter (see on this thread ?)

testarc 2009-12-14 18:52
Re: N900 will not allow USB OTG!
 
any new test of OTG or usb hosting ?

Otaku 2010-01-03 02:22
Re: N900 will not allow USB OTG!
 
Hi,

Just wondering, has anyone gotten any further with investigating USB OTG support?

I haven't quite made up my mind to buy the N900 yet... the open question about USB OTG is one of thing things holding me back for now, especially with the next Maemo device scheduled to come out this year.

Otaku 2010-01-03 03:00
Re: N900 will not allow USB OTG!
 
I'm no EE, but I was under the impression from the December 2009 activity in this thread that it still seems like there is a good chance that the hardware supports USB OTG, even though it may need a custom kernel and/or some cable trickery.

twoboxen 2010-01-03 03:39
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by Otaku (Post 450691)
I'm no EE, but I was under the impression from the December 2009 activity in this thread that it still seems like there is a good chance that the hardware supports USB OTG, even though it may need a custom kernel and/or some cable trickery.
It seems like those guys know more about the internals than anyone on this thread. Perhaps someone would be willing to work with the last guy on his test. Anyone?


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