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

Texrat 2009-09-22 00:31
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by NvyUs (Post 331049)
when all the newbies was complaining about no portrait support out the box lot of the older community members was there slaughtering them.
now theres a feature missing what affects a lot of them more its ok to complain about n900 now hmmm. Theres a little bit of double standards around here.
More like differences of opinion than anything.

yawn.

fnordianslip 2009-09-22 00:34
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by Architengi (Post 331066)
Can the second USB port be USB HOST *and* pen sharpener instead of being USB charger? :D
Oh yes, because I want my pen to be be both mightier AND sharper than the sword, just to be on the safe side.

Now, "I'm feeling stabby!"

Crashdamage 2009-09-22 00:36
Re: N900 will not allow USB OTG!
 
I just don't really understand all this angst over the lack of a single feature. Because I don't need it, I guess, and I realize that means nothing to those who do. But I think mostly I just have different expectations for the N900. I mean, just because the N900 is called a "mobile computer' I didn't expect it to be able to do everything my home Linux box or mini-laptop can do. I do expect it to be able to do most - but not all - the things they do, without wires and from my pocket. My truck and my wife's Mini Cooper S will both get you there, but the truck will carry more stuff while the Mini does it quicker and makes it fun.

And that's the difference to me. The N900 is meant to be mobile, far more so than even a netbook or tablet, used totally wireless and utterly portable, except for charging or hooked up as a mass storage device now and then. To me, that's what it's intended and designed for - totally portable computing, and hooking up DVD drives, external HDDs, etc. etc. are not in my definition of totally portable pocket computing. That's what desktops and laptops are for. Each to it's purpose.

If I want to do more than the N900 was intended to then I fully expect to have to find hacks or alternate methods to do those things. I wouldn't be mad at the device designers because I'm expecting more of it than it was designed to do or standards they didn't write.

The N900 won't do everything my desktop box or laptop does and that's ok. It's still a computer - a very, very mobile computer.

range 2009-09-22 00:38
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by lma (Post 331042)
While it may be portable and contain a microprocessor, it's less useful as a general purpose computer than its predecessors despite the extra processing power. USB host/OTG is just the latest item in a long list of pre-existing features that we took for granted but have been removed from the N900/Fremantle.
Umm. Except the USB problem I haven't found any feature which was taken away yet. Care to elaborate?

D-Pad? Two SD-Cards (which the N810 didn't have either)? 3,5" screen?

Architengi 2009-09-22 00:39
Re: N900 will not allow USB OTG!
 
The title:

"N900 will not allow USB OTG!"

should actually be read:

"N900 will not allow USB OMG!!!!!!" :confused:

Architengi 2009-09-22 00:47
Re: N900 will not allow USB OTG!
 
Guys I told you I am on the fence with this device...
after the rumors that it cannot cook nor wash dishes... but this USB mising pen sharpener is clear from Mars is an earth-quacker / dealbreaker ... I want to officially declare a break on my engadgment with this device... :D

gerbick 2009-09-22 01:02
Re: N900 will not allow USB OTG!
 
I've been following this thread... and I remember getting yelled at by many members about how Bluetooth OBEX wasn't a big deal to me. Yet it was to many.

Apparently USB OTG is a big deal... and again it's not such a big deal to me either.

I mean, sure. the N810 can do it, but there was no guarantee that the N900 would. The N800 had dual normal sized SD chips... the N810 had that funky miniSD ordeal... and only one of them.

But... it does make me question the whole "mobile computer" term now. What does that fully mean by Nokia's standards and not opinion?

A whole lot of freaking out about something that's been possibly worked around at least 3 times in this thread alone. More soon down the road... I'm pretty sure of it.

Thesandlord 2009-09-22 01:13
Re: N900 will not allow USB OTG!
 
Listen to JayOnThaBeat!

WAIT TILL THE N900 COMES OUT!

Then we can see if host can be enabled through a hack.

If it can't, then fine. If it can, then good!

If anyone with a n900 can enable host mode, or try to, please please please do.

This is not a "deal-breaker" for me, but it is important.

Edit: Seriously Jay, I messed up your username by one letter...

RobbH 2009-09-22 01:38
Re: N900 will not allow USB OTG!
 
Many thanks for this thread. The way I expect my mobile computer to exchange files with my desktop and other computers is via flash drive. If host mode can be hacked into the N900 or implemented later, that'll be great. But for now I'm not interested in elaborate workarounds. I've cancelled my preorder.

thecursedfly 2009-09-22 01:48
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by allnameswereout (Post 331012)
http://usb.brando.com/55-in-1-blueto...0c036d015.html this one? It even supports all those card formats you were always afraid for you would one day maybe need to support it via an adapter ;)

Why is a simple USB hub + a BlueTooth dongle not suffice?
(sorry for answering like 3 pages after your post) You seem to continue with the same mistake: this one is just a USB hub with incorporated bluetooth dongle and card reader (a union of 1, 2, 3 with just one connection cable). For the rest it still needs to be attached to the USB port (see USB cable between images) of a Host device (pc/laptop/N810).
What we may need (if the bluetooth limitation is good enough for the others), if I understood well of course, is:
N900 -> [bluetooth] -> (selfpowered) Bluetooth Hub with female USB port -> USB flash drive (or any other USB slave device)

for the rest, pointless to discuss about air... ^^

find a solution to the USB host thingie, and in a couple of months max, a N900 will be mine... ^^
otherwise, time will tell.

I vote for silence till we have any real possible solution... bye ;)

Dead1nside 2009-09-22 01:50
Re: N900 will not allow USB OTG!
 
I'm not ragging on Nokia about this because it's another feature that I'll use quite rarely. However I simply don't see why they keep missing all these features off, especially if it was in the platform previously?

vinc17 2009-09-22 01:52
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by RobbH (Post 331098)
The way I expect my mobile computer to exchange files with my desktop and other computers is via flash drive.
Why using a flash drive when you can transfer the files directly (by USB or wifi)?

vinc17 2009-09-22 01:54
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by Dead1nside (Post 331102)
However I simply don't see why they keep missing all these features off, especially if it was in the platform previously?
To implement new features?

JayOnThaBeat 2009-09-22 02:12
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by Thesandlord (Post 331092)
Listen to JayOnThaBeat!

WAIT TILL THE N900 COMES OUT!
Listen to Thesandlord when he says to listen to me!!!!

:D

bocaJ 2009-09-22 02:15
Re: N900 will not allow USB OTG!
 
I'm not a nokia engineer, but my guess is that at least part of the reason for not including support is power mangement. Yes, they could have included the needed controllers to meet the USB compliance specs, but the engineers might have come back and said "if you do this, given existing battery tech, weight and dimension requirements, we will not be able to give you a full day of use."

Certainly, a lot of people here will legitimately say "this is a deal breaker for me" and mean it (unlike the compass issue, where I'm a bit disapointed, but more I think people are just blowing off steam). At the same time, if every review is saying this doesn't get nearly a day of usage, a greater number of people, with equal legitimacy, would say "this is a deal breaker".

That being said, I'm still on the fence. I've got the money, just trying to decide whether to shell out. Mostly the issue is, "hey, it's a lot of money". If Quim or GA or someone comes back and says "voila! 100% successful workaround!" I'll almost certainly pull the trigger. Without that, I'm not sure.

vkv.raju 2009-09-22 02:25
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by bocaJ (Post 331114)
I'm not a nokia engineer, but my guess is that at least part of the reason for not including support is power mangement. Yes, they could have included the needed controllers to meet the USB compliance specs, but the engineers might have come back and said "if you do this, given existing battery tech, weight and dimension requirements, we will not be able to give you a full day of use."

Certainly, a lot of people here will legitimately say "this is a deal breaker for me" and mean it (unlike the compass issue, where I'm a bit disapointed, but more I think people are just blowing off steam). At the same time, if every review is saying this doesn't get nearly a day of usage, a greater number of people, with equal legitimacy, would say "this is a deal breaker".

That being said, I'm still on the fence. I've got the money, just trying to decide whether to shell out. Mostly the issue is, "hey, it's a lot of money". If Quim or GA or someone comes back and says "voila! 100% successful workaround!" I'll almost certainly pull the trigger. Without that, I'm not sure.
People will not be using this feature for whole day like what you think. It is just for the few minutes (or hours on some days) that people want to use this OTG. And most likely, this usage will be more when they are away from their computers.

And now to the battery point, I clearly don't see how this would be a problem or an issue. People who don't require it anyways are not extra-draining the battery. And for the rest, they know what they are into. No brainer!

BruceL 2009-09-22 02:32
Re: N900 will not allow USB OTG!
 
I don't think that the thread should go silent. Instead, I think we should work toward looking for a solution. The question about how a script to test TESTMODE may be written is out. Perhaps someone can shed some light on that.

In addition to working toward a solution, we need to keep listening to people's disappointment. I wanted to rant before I could think about finding a solution and other people do too.

It is good to have the listen-to-disappointment thread and the find-a-solution thread be the same thread because 1) the solution can help with disappointment and 2) disappointment can help push for a solution. They are different sides of the same coin.

I'm on the find-a-solution side now, but if you're disappointed/angry whatever, community falls apart when people don't express their negative ideas as well as the positive. Let's not fall into "group think" whenever there is a problem.

Now... Any ideas on what a test TESTMODE script would look like? Would it call the OS? Use DBUS? Need a special lib file? I don;t know, but I bet someone has at least an idea.

allnameswereout 2009-09-22 02:33
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by Dead1nside (Post 331102)
[...] I'm not ragging on Nokia about this because it's another feature that I'll use quite rarely. However I simply don't see why they keep missing all these features off, especially if it was in the platform previously?
Quote:
Originally Posted by vkv.raju (Post 331124)
[...] And now to the battery point, I clearly don't see how this would be a problem or an issue. People who don't require it anyways are not extra-draining the battery. And for the rest, they know what they are into. No brainer!
http://lists.maemo.org/pipermail/mae...er/020830.html

vkv.raju 2009-09-22 02:37
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by allnameswereout (Post 331126)
I was thinking more in the terms of why not 2 microUSB's?

JayOnThaBeat 2009-09-22 02:38
Re: N900 will not allow USB OTG!
 
Like I suggested, we should wait til a decent-sized handful of people have the device in their hands.

You can't exactly fix it without having it to begin with, can you?


Quote:
Originally Posted by BruceL (Post 331125)
I don't think that the thread should go silent. Instead, I think we should work toward looking for a solution. The question about how a script to test TESTMODE may be written is out. Perhaps someone can shed some light on that.

In addition to working toward a solution, we need to keep listening to people's disappointment. I wanted to rant before I could think about finding a solution and other people do too.

It is good to have the listen-to-disappointment thread and the find-a-solution thread be the same thread because 1) the solution can help with disappointment and 2) disappointment can help push for a solution. They are different sides of the same coin.

I'm on the find-a-solution side now, but if you're disappointed/angry whatever, community falls apart when people don't express their negative ideas as well as the positive. Let's not fall into "group think" whenever there is a problem.

Now... Any ideas on what a test TESTMODE script would look like? Would it call the OS? Use DBUS? Need a special lib file? I don;t know, but I bet someone has at least an idea.

vkv.raju 2009-09-22 02:45
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by JayOnThaBeat (Post 331130)
Like I suggested, we should wait til a decent-sized handful of people have the device in their hands.

You can't exactly fix it without having it to begin with, can you?
Then what should I do with my pre-order?

BruceL 2009-09-22 02:46
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by JayOnThaBeat (Post 331130)
Like I suggested, we should wait til a decent-sized handful of people have the device in their hands.

You can't exactly fix it without having it to begin with, can you?
Some people have it. If they can verify that a fix would work then I (and many others) wouldn't have to cancel our pre-orders. If I don't have to, I do not want to wait until it is released, THEN another few weeks for people to try the fix. I REALLY don't want to cancel, but I can't justify that much $ if it doesn't solve my problem.

bocaJ 2009-09-22 02:56
Re: N900 will not allow USB OTG!
 
I am not an engineer, but I think this document might help:

http://www.usb.org/developers/ontheg...and_EH_2-0.pdf (pdf warning)

Someone smarter than me can read this maybe.

allnameswereout 2009-09-22 03:31
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by thecursedfly (Post 331101)
(sorry for answering like 3 pages after your post)You seem to continue with the same mistake: this one is just a USB hub with incorporated bluetooth dongle and card reader
That is the same as:

[quotte]N900 -> [bluetooth] -> (selfpowered) Bluetooth Hub with female USB port -> USB flash drive (or any other USB slave device)[/quote]

Quote:
find a solution to the USB host thingie, and in a couple of months max, a N900 will be mine... ^^
otherwise, time will tell.
See http://talk.maemo.org/showpost.php?p...&postcount=195 & its parents. This device supports USB host mode.

But frankly.. I think you (and some other folks) are not doing your home work. Because if it does not matter how much power the device draws (it uses an adapter anyway) then we're quickly done, and welcome to embedded world of Linux.

For example a Soekris 5501 can have SATA or PATA (and has CF too). You'd have internal storage and use N900 to connect to it. It doesn't have PCMCIA though (but some other versions do). It has a USB port and could use host most (but not charge device over USB). It has MiniPCI and MiniPCI Express too. It could run *NIX or whatever you want...

http://www.metrix.net/pcmcia-to-usb-...4521-p-69.html

or this

http://www.linuxfordevices.com/c/a/N...eamScreen-100/

or a settopbox (I bet my Philips DVR would work. Not sure it has USB, have to check.)

or the predecessor of this

http://www.linuxfordevices.com/c/a/News/Linutop-3/

or this HDD enclosure with USB OTG (has even on-board battery?!)

http://www.acesuppliers.com/Supplier...oom_12470.html

And thats found with 5 min searching, and they're a bit overkill, so I'm sure you can do much better.

nashith 2009-09-22 03:37
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by JayOnThaBeat (Post 331145)
I foolishly thought I was smarter than you, and subsequently tried to read that.

ouch :confused:
The specification http://www.usb.org/developers/ontheg...and_EH_2-0.pdf has a revision as late as May 8, 09. And it also mentions hardware changes to enable charging via USB. I am no expert but there is this "Targeted Host" mode, which simply saying allows something in between OTG and EH, with certains limitations on what type of devices it supports.

Texrat 2009-09-22 03:50
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by nashith (Post 331170)
The specification http://www.usb.org/developers/ontheg...and_EH_2-0.pdf has a revision as late as May 8, 09. And it also mentions hardware changes to enable charging via USB. I am no expert but there is this "Targeted Host" mode, which simply saying allows something in between OTG and EH, with certains limitations on what type of devices it supports.
Which is right where we are with current tablets, more or less.

ossipena 2009-09-22 05:24
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by thecursedfly (Post 330974)
my digital camera uses SD cards, not microSD. only ways to transfer photos are: USB or SD reader.
haha seriously :D

if this is a problem, i suggest thinking it again as long as it takes so you realize something....

allnameswereout 2009-09-22 05:25
Re: N900 will not allow USB OTG!
 
http://www.usb.org/developers/ontheg...ices_FINAL.pdf

Page 7 illustrates 3 scenarios. But doesn't say all 3 may be available using 1 USB port.

Page 8 shows a Nokia N810 :D

Page 11 shows a car radio. If that supports USB OTG.

Really weird. Maybe the update to the specification came too late for N900.

From the other PDF, here is definition of "Targeted Host"

Quote:
As computing resources have become less expensive, the line between PCs and other products has
blurred. Today many devices that are not PCs in the classic sense have a need to connect directly to
peripherals: Printers connect directly with cameras, for example, or mobile phones may need to connect
to USB headsets.
These non-PCs have the computing resources to manage a USB host function, but they need to function
in ways that differ from standard PC hosts. Although they will provide host capability for some devices,
it's unreasonable to require them to support the full range of USB peripherals. For example, connecting
a camera to a printer makes a lot of sense, but the printer manufacturers may not think it is quite as
important for the printer to support a USB GPS dongle. Because this is new territory for USB, developers
need a way to understand what USB functionality they need to provide and what functionality is not
required.

This specification defines these non-PC hosts as Targeted Hosts. A Targeted Host is a USB host that
supports a specific, targeted set of peripherals. The developer of each Targeted Host product defines
the set of supported peripherals on a Targeted Peripheral List (TPL). A Targeted Host needs to provide
only the power, bus speeds, data flow types, etc., that the peripherals on its TPL require.
If you go to 2 Operational overview in the PDF it says

Quote:
An OTG device is required to have one, and only one USB connector: a Micro-AB receptacle as defined
in [Micro-USB1.01]. This receptacle is capable of accepting either a Micro-A plug or a Micro-B plug
attached to any of the legal cables and adapters defined in [Micro-USB1.01].

[...]

An Embedded Host is required to have one or more Standard-A receptacles as defined in [USB2.0].
Optionally an Embedded Host may also contain one or more Type-B receptacles but these must be
implemented such that the user is unlikely confuse the EH with a USB hub. Since the Standard-A plug
does not contain an ID pin, an EH is not able to automatically power the USB bus on plug insertion
unless ADP is also supported.
So, seems according to the spec it is not allowed to have 1 USB OTG and 1 USB EH connector (for charging the device).

I'll read the rest some other time because I gotta go on the go.

qole 2009-09-22 05:45
Re: N900 will not allow USB OTG!
 
Good news, the N800 and the N900 make a nice little wifi adhoc network that can be used for sshfs and copying files... So no need to worry about BT speeds.

debernardis 2009-09-22 05:55
Re: N900 will not allow USB OTG!
 
My manly bag is going to become a manly trolley ;) However, if this is the only solution by now...

GeneralAntilles 2009-09-22 06:35
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by bocaJ (Post 331114)
I'm not a nokia engineer, but my guess is that at least part of the reason for not including support is power mangement. Yes, they could have included the needed controllers to meet the USB compliance specs, but the engineers might have come back and said "if you do this, given existing battery tech, weight and dimension requirements, we will not be able to give you a full day of use."
Yeah, battery life is definitely not the culprit here.

qole 2009-09-22 06:37
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by debernardis (Post 331238)
My manly bag is going to become a manly trolley ;) However, if this is the only solution by now...
No, it will stay the same size. The N900 will replace your phone.

It will get a lot smaller as your colleagues all start using e-mail or cloud services to share files, instead of USB drives.

deadmalc 2009-09-22 06:42
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by qole (Post 330911)
I love Ethernet too, but seriously, take a look at something like the Cisco/Linksys WRT54GL. It has a Linux OS that can be flashed to a custom enhanced version; it's a great Ethernet router; plus it does rock-solid, secure wireless.
I'd definitely agree with that I flashed mine with x-wrt and it's much, much better!

http://x-wrt.org

Take a look!

joppu 2009-09-22 07:18
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by attila77 (Post 330951)
  • capacity. HD material will run you 5-20GB per hour, so 32GB is not an unfillable resource (actually, if 32GB was enough, I would not bother with the tablet at all, I'd just buy a 32GB SD :) )
Too bad N900 won't probably play back 720p smoothly.

nashith 2009-09-22 07:27
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by allnameswereout (Post 331231)
http://www.usb.org/developers/ontheg...ices_FINAL.pdf

So, seems according to the spec it is not allowed to have 1 USB OTG and 1 USB EH connector (for charging the device).

I'll read the rest some other time because I gotta go on the go.
I read from somewhere that Iriver H340 (international version) have two separate USB connectors. 1 for Host mode and 1 for USB peripheral mode.

pycage 2009-09-22 08:10
Re: N900 will not allow USB OTG!
 
Even though Nokia managed to put everything imaginable minus the compass (Bluetooth, 3G, FM transmitter & receiver, IR transceiver, keyboard, stylus, GPS, WiFi, touchscreen, USB charging, MicroSD slot, 5M camera with LED-flash, TV-out) into one device, people still find some missing feature.
It's always like that and will always be like that. More stuff would have resulted in a larger and more expensive device. A production unit is always a compomise between what's possible and what's reasonable for marketing.
But the N900 isn't the end. More Maemo devices will certainly follow, lacking some of the above, but having USB-OTG e.g. There will be choice. Just not yet. :)

allnameswereout 2009-09-22 08:43
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by pycage (Post 331293)
Even though Nokia managed to put everything imaginable minus the compass (Bluetooth, 3G, FM transmitter & receiver, IR transceiver, keyboard, stylus, GPS, WiFi, touchscreen, USB charging, MicroSD slot, 5M camera with LED-flash, TV-out) into one device, people still find some missing feature.
It's always like that and will always be like that. More stuff would have resulted in a larger and more expensive device. A production unit is always a compomise between what's possible and what's reasonable for marketing.
But the N900 isn't the end. More Maemo devices will certainly follow, lacking some of the above, but having USB-OTG e.g. There will be choice. Just not yet. :)
There is already choice. This isn't the first Maemo device. ;)

Quote:
Originally Posted by nashith (Post 331277)
I read from somewhere that Iriver H340 (international version) have two separate USB connectors. 1 for Host mode and 1 for USB peripheral mode.
True. Both H320 and H340 international version. The North American version requires hardware and software mod.

Quote:
There are two hardware types for each model. These hardware types are commonly referred to by the locations they are sold. The USA models, predominantly sold in North America, have a built in DRM key, which lets them play music with Microsoft DRM. The International models, sold everywhere but North America, do not handle DRM-restricted content and have the HOST port linked to the battery, which allows them to do USB On-The-Go. The International models also support limited xvid (10 fps) video playback.

North American models can be modified to support USB OTG by means of a small internal soldering job, an external modified cable, or a USB transfer box. International firmware is also required.
However remember this device is from 2004 while the revision of the specification I quoted from is from may 2009. I think the H3x0 also has 2 miniUSB instead of microSD; one miniUSB_A and one miniUSB_B. I don't have the Iriver H340 anymore since I gave it away a few months ago, so I can't test USB OTG on it. Never imagined I would either. Btw, some digital cameras also support USB OTG.

PS: @ andree, the USB spec update, and the fact the device charges over USB. Please read the whole thread.

andree 2009-09-22 08:53
Re: N900 will not allow USB OTG!
 
I'm thinking about the whole usb stuff right now - and a question came into my mind... What's so different about n900's, that it can't use regular OTG?

From what I read, it's completely normal to have a OTG device, that once acts as client (thus consuming power from usb cable = e.g. charging own batteries), and as a usb host another time (=e.g. powering usb flash stick)... That's the whole point of OTG, or am I wrong?

I can't quite imagine, what nokia guys did with the hardware, when the TI 3430 supports OTG out-of-box (according to specs)... :-/


Quote:
Originally Posted by BruceL (Post 331125)
Now... Any ideas on what a test TESTMODE script would look like? Would it call the OS? Use DBUS? Need a special lib file? I don;t know, but I bet someone has at least an idea.
If the whole solution is about telling chip to set some config bit, it'd be a matter of a few lines in kernel driver/module for that device - if there is a way to tell the chip to do so, of course... But you can't actually write anything until you have the hardware in hands...

Matan 2009-09-22 08:59
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by allnameswereout (Post 331166)
That is the same as:

N900 -> [bluetooth] -> (selfpowered) Bluetooth Hub with female USB port -> USB flash drive (or any other USB slave device)
No. It is not the same. You don't understand how USB works, please stop talking about this.

A USB hub does not allow to devices (BT dongle and flash drive) to talk between them only device <-> host. There is no host in your scenario.


Quote:
or this HDD enclosure with USB OTG (has even on-board battery?!)

http://www.acesuppliers.com/Supplier...oom_12470.html

And thats found with 5 min searching, and they're a bit overkill, so I'm sure you can do much better.
No. This is not even close to an overkill. When you connect a hard disk to the N810 with USB host mode, you can do whatever you want with it. The N810 controls the connection.

When you connect this (or any similar) device to the N900, the HD controls the connection. Programs on the N900 can't access the HD (and not even the internal 32GB). All you can do is press a button and have some files from the 32GB copied to the HD. You can't even control which files will be copied. Then you need to count beeps to know if it worked or not, since there is no way you can check.

There is nothing in this device (or in any of the other devices you suggested) that might be considered a replacement for USB host functionality.

GeneralAntilles 2009-09-22 09:05
Re: N900 will not allow USB OTG!
 
Quote:
Originally Posted by Matan (Post 331323)
There is nothing in this device (or in any of the other devices you suggested) that might be considered a replacement for USB host functionality.
How about a cake pony? I hear lcuk has cake ponies.


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