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SpeedEvil is offline SpeedEvil
2010-05-09 , 11:06
Posts: 70 | Thanked: 410 times | Joined on Sep 2009 @ Fife, Scotland.
#1
Through the efforts of many - this has been achieved - at least in basic form.
The n900 detected two USB devices - though did not have drivers for them.

Egoshins post of earlier today. http://talk.maemo.org/showpost.php?p...&postcount=808

This is _not_ quite user-ready yet - but with the addition of http://talk.maemo.org/showpost.php?p...&postcount=803 - USB internal power - first got working by joerg http://talk.maemo.org/member.php?u=35572 it's almost there!

In a week or two - we should be able to (with the appropriate cable) plug in (low powered) memory sticks or keyboards, and have it work. Or high powered stuff through USB hubs.

This includes stuff that vastly expands the possibilities for the n900 - imagine a USB display adaptor showing a 'normal' desktop on any LCD.

However - this requires a fair bit of software work.

Getting to a state where this is user friendly requires work on understanding BME.
BME is the battery managment entity.

This controls many aspects of the phones power subsystem, and it looks like that to get powered hostmode at the moment, this needs to be killed/suspended. This means the phone won't charge when plugged in, and requires all sorts of hackery to pause BME.

Workarounds for this would be great, but it's going to take some effort.

To collaborate on this if you have kernel or reverse engineering skills: (we do not at this time need user perspectives, we know that plugging stuff into USB is cool. If you want to participate - thank those involved in the effort)

http://wiki.maemo.org/N900_Software_BME Reverse engineering of BME, and ways to get it to cooperate.
http://wiki.maemo.org/N900_Hardware_USB_Host USB host mode - kernel and userspace details.
http://wiki.maemo.org/N900_Hardware_USB An overview.

IRC - #maemo-hostmode-discussion on irc.freenode.com
 

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Shady 91' is offline Shady 91'
2010-05-09 , 11:10
Posts: 84 | Thanked: 11 times | Joined on Mar 2010 @ Tricase, Lecce (ITA)
#2
in my opinion, nokia in the next update (maybe pr 2.0 ), will introduce the USB OTG with same nokia USB OTG adapter that will include in the n8 package.
 
kinipyon is offline kinipyon
2010-05-09 , 11:14
Posts: 51 | Thanked: 57 times | Joined on Feb 2010 @ Helsinki
#3
Originally Posted by Shady 91' View Post
in my opinion, nokia in the next update (maybe pr 2.0 ), will introduce the USB OTG with same nokia USB OTG adapter that will include in the n8 package.
Mmm. Why then Nokia did disable the function in the first place?

Because it did'nt met the USB Foundation requirements, it had to be disabled.
 
Shady 91' is offline Shady 91'
2010-05-09 , 11:20
Posts: 84 | Thanked: 11 times | Joined on Mar 2010 @ Tricase, Lecce (ITA)
#4
maybe is marketing. If nokia activate the usb OTG, how many people acquire the cable?

I'm the first
 
rpgAmazon's Avatar
rpgAmazon is offline rpgAmazon
2010-05-09 , 11:28
Posts: 146 | Thanked: 119 times | Joined on Jan 2010 @ Spain
#5
Originally Posted by Shady 91' View Post
maybe is marketing. If nokia activate the usb OTG, how many people acquire the cable?

I'm the first
Second here! How many units "are" available?
 
joerg_rw's Avatar
joerg_rw is offline joerg_rw
2010-05-09 , 11:47
Posts: 2,222 | Thanked: 12,651 times | Joined on Mar 2010 @ SOL 3
#6
Originally Posted by kinipyon View Post
Mmm. Why then Nokia did disable the function in the first place?

Because it did'nt met the USB Foundation requirements, it had to be disabled.
exactly.
Read here http://talk.maemo.org/showthread.php...577#post643577 (last greenish colored §), and also the links posted by speedevil above
/jOERG
 

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rash.m2k is offline rash.m2k
2010-05-09 , 11:48
Posts: 642 | Thanked: 486 times | Joined on Aug 2008
#7
respect! you guys are ****ing geniuses!
 

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joerg_rw's Avatar
joerg_rw is offline joerg_rw
2010-05-09 , 12:11
Posts: 2,222 | Thanked: 12,651 times | Joined on Mar 2010 @ SOL 3
#8
if you like to catch up with what's been going on at the hostmode front during the last few weeks, I suggest you skip the whole bunch at start and read http://talk.maemo.org/showthread.php...950#post588950 and followups.
Quick summary:
http://talk.maemo.org/showthread.php...339#post649339
http://talk.maemo.org/showthread.php...145#post650145
Last edited by joerg_rw; 2010-05-09 at 12:51.
 

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abill_uk is offline abill_uk
2010-05-09 , 12:14
Banned | Posts: 3,412 | Thanked: 1,043 times | Joined on Feb 2010
#9
EXCELLENT WORK you guys just goes to prove what the N900 will be capable of EVENTUALLY !.
Problem left is the poor design of the usb port.
 
blue_led is offline blue_led
2010-05-10 , 11:25
Posts: 306 | Thanked: 566 times | Joined on Jan 2010 @ Romania
#10
I will reverse engineering of BME for food... ah my english, sorry ... for free
I want disassemble but i don't have assembler/disassembler for arm so point to one please.
 
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