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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)

blue_led 2010-06-02 21:06
Re: N900 will not allow USB OTG!
 
it seems there is differences between different sticks
i test it 8GB a-data stick and it is sensed always but 2GB Kingmax SuperStick trigger to the peripheral mode and because 5v is on on vbus ( external ) this trigger pcsuite / mass storage selection menu !!! :) :mad:

i don't know yet why this happen
keyboard trigger a mesage something like " bogus device "
SanDisk SD card reader don't work with or without sd inserted

jimx 2010-06-02 21:54
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by blue_led (Post 696592)
SanDisk SD card reader don't work with or without sd inserted
Sandisk microSD readers are flaky anyhow, desktop Ubuntu don't see either of my 2

qole 2010-06-02 22:24
Re: N900 will not allow USB OTG!
 
blue_led, you are able to reproduce MohammadAG's results? joerg_rw? sarahn? Anybody else?

anaskr 2010-06-02 22:34
Re: N900 will not allow USB OTG!
 
all i can say is !! you guys just rock :D !! you guys are like the elder brothers and we are like the younger!! you take care of us and that feels awesome !! :D :D

lol got carried away!! keep up the good work guys

anaskr 2010-06-02 22:35
Re: N900 will not allow USB OTG!
 
if u need help in trying out nething on my n900 !! i up for it

blue_led 2010-06-02 22:48
Re: N900 will not allow USB OTG!
 
1 Attachment(s)
i see the light ... sorry ... the hub /joke
now i have unstable results as others
more stable result i,ve got using id
Attachment 10590

sarahn 2010-06-03 01:08
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by titan (Post 696459)
Some bad news: I coudn't reproduce it, even with MohammadAG's kernel, script and his help on IRC.
I could get the LEDs of my stick flashing for a moment but no hostmode.
Let's hope it's just me, my device or stick and that someone else can reproduce it.
Try the command 'lsusb' and see if it is listed. I found that my usb stick was detected but no /dev entry was created.

sarahn 2010-06-03 01:11
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by javispedro (Post 695332)
According to sarahn's test (see prev page) gaia does not assert the vbus pin but only sets the id pin bit if both vbus and id are sensed. Could you check that?
If vbus and Id pin are applied at the same time, I believe vbus is prioritized. If you plug in id then power, I believe there is not another interrupt.

maxximuscool 2010-06-03 01:23
Re: N900 will not allow USB OTG!
 
Keep it coming guys!!

titan 2010-06-03 06:32
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by titan (Post 696459)
Some bad news: I coudn't reproduce it, even with MohammadAG's kernel, script and his help on IRC.
I could get the LEDs of my stick flashing for a moment but no hostmode.
Let's hope it's just me, my device or stick and that someone else can reproduce it.
I have a possible explanation why it fails: my USB stick requests 200mA
which is the limit of the N900. I'll try again with another less power-hungry device.

EDIT: again, no success with a 100mA SD card reader :-(


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