Re: USB 2.0 OTG on N810
 

So, to get USB host mode working on the N800, according to the thread that LurkerN directed us to, starting with this post, you need to do the following:

1. Flash your N800 with OS2008
2. become root
3. enter:

echo host > /sys/devices/platform/musb_hdrc/mode

4. plug in your hub / keyboard / flash drive / digital camera
5. N800 complains about not recognizing the device
6. Device works anyway!

Re: USB 2.0 OTG on N810
 

If you have the correct cable, you do not need to enter anything... it is fully transparent.

Re: USB 2.0 OTG on N810
 

Isn't that only for devices that support OTG?

Re: USB 2.0 OTG on N810
 

Yeah, people trying to make OTG work with the N800 are reporting intermittent problems. I think the main problem is that the N800 doesn't have the right sort of connector (Mini AB?) for OTG and auto-mode-switching.

When OS2008 is finally released to the general public (or I finally get too impatient and download the beta, whichever comes first), I'll write a couple of simple one-line scripts to switch between USB modes.

Re: USB 2.0 OTG on N810
 

I'll have the cable next week, when I willl be able to confirm what I just said. However some people DID report fully transparent operation with "norrmal" devices.

Re: USB 2.0 OTG on N810
 

This is still about USB OTG on the N810, right?

I know more people have N800's, but there's already a huge thread about USB host mode on the N800.

Where did you get your cable, convulted?

Re: USB 2.0 OTG on N810
 

Is this the necessary cable for USB OTG for the N810?

http://neostar.manufacturer.globalso.../USB-Cable.htm

You can't buy directly from them, but it's a start is someone at least makes it.

Re: USB 2.0 OTG on N810
 

Let us know when you get it, or at least what type it is and where you found it. I'm not totally clear on what kind it should be.

Re: USB 2.0 OTG on N810
 

Yeah but how much of a draw is the external flash memory on the unit?

Re: USB 2.0 OTG on N810
 

Digital camera? You mean accessing the photos stored one the memory card, not the camera itself? Although, it would be interesting if we could connect a USB webcam.

Re: USB 2.0 OTG on N810
 

http://www.verkkokauppa.com/producti...g/21081_01.jpg

Can you make OTG work with something like this? Or is the cable an absolute necessity?

Re: USB 2.0 OTG on N810
 

Usually, only cheap cameras have built-in flash. Either way, accessing the built-in memory or the removable flash card on a camera should both be simple if the camera supports OTG. Most if not all non-dSLR's don't, and even lots of dSLR's don't.

My Nikon D80 does though, and I'm waiting to get to Radio Shack for an adapter to convert the non-N810 side of Nokia's cable from USB A to mini (what the camera takes).

Re: USB 2.0 OTG on N810
 

I don't know if an adapter can in some way make a USB OTG cable non-OTG-compatible. I'm a tad confused about that, since all of my OTG devices (my Nikon D80 camera, my iRiver X5 MP3 player, and now the Nokia N810) came with cables, ostensibly because they're OTG-capable.

Actually, my MP3 player that does USB OTG has a proprietary connected--looks like a mini USB jack but with a different shaped metal housing. So, that's also a hint that these cables are usually included because they're required to use OTG with the device.

Anyway, I initially replied just to say that the N810 comes with a USB cable that (needless to say) fits into the micro USB jack on one end and has a regular, male USB A plug on the other. Getting a female-to-female plug for regular USB A would let you then use any USB A-to-whatever cable instead of finding an adapter for everything.

Or, find an adapter for what you need. It depends on what cables you've got lying around and what you'll be using this for.

Re: USB 2.0 OTG on N810
 

You just have to connect id and ground at the host (OTG A) side:
http://media.maxim-ic.com/images/app.../1822Fig02.gif

some users have reported that they don't have to switch on the n800 to host mode manually when they connect pin 4(id) and 5(ground)

http://www.internettablettalk.com/fo...&postcount=116

Re: USB 2.0 OTG on N810
 

Anyone experiment with usb mice or keyboards?

Re: USB 2.0 OTG on N810
 

USB keyboard should be a breeze. I have even connected a wireless USB mouse to my N800 via a normal cable (using the `echo host > ...` command) and got some garbage output into /dev/input/mouse0 whenever I moved the mouse. I also got the cursor displayed. The key problem is that I dunno how to connect the two :)
Everything should be identical on the N810.

Re: USB 2.0 OTG on N810
 

It should be the same as on the n800 with os 2008:

http://www.internettablettalk.com/fo...?t=4177&page=4
(from post #36 on should be intresting for you)

Re: USB 2.0 OTG on N810
 

I bought this for my n800 http://www.twstore.com/gcusbafxm.html and decided to upgrade to the n810, will that adapter work with the n810?

Re: USB 2.0 OTG on N810
 

The pictured item will not connect directly to the N810.

N800 = Mini receptacle
N810 = Micro receptacle

Re: USB 2.0 OTG on N810
 

well that sucks.

Re: USB 2.0 OTG on N810
 

It's not as if it's been a closely garded secret or something.

Re: USB 2.0 OTG on N810
 

Do you know how much it would cost to ship it to the UK? I could take it off your hands; that website does not ship internationally AFAIK.

Re: USB 2.0 OTG on N810
 

USB keyboard works perfectly, but the mouse I have seems to suck too much power, i'll to find a cheaper generic laser mouse. How did you manage to get a working cursor?

Re: USB 2.0 OTG on N810
 

Just to keep this thread alive and not start a new one -
I've checked ALL the posts twice and out of all 100+ posts it seems that only the Neostar cable looks like it can do anything to solve our problem.
I need to be able to hook up standard thumb drives and 2.5" external drives (like WD 250Gb passport) I would expect to have to provide external power (AA battery/ies).
Has anyone found a solution?

Re: USB 2.0 OTG on N810
 

Don't we just need a USB A female-female adapter in conjunction with the included Nokia cable to be able to plug in "regular" USB?

Re: USB 2.0 OTG on N810
 

What I have learned in this thread, the answer is no. Check out the N800 host-mode experiment thread too for more information.

Re: USB 2.0 OTG on N810
 

I thought that the N810 is in a different boat for USB OTG host mode.

Re: USB 2.0 OTG on N810
 

If it is that simple why hasn't anyone done it and reported how to do it?

We will probably require an adapter with some sort of "power injection".
/edit for dsylexic keyboard

Re: USB 2.0 OTG on N810
 

The power issue is a seperate one. The easy and obvious method would be using a powered hub for which you could also build a battery pack, no?

Anyway, what we're talking about is the required cable, regardless of whether the device you want to use will need extra power or not.

Re: USB 2.0 OTG on N810
 

for what it's worth, I managed to get a self-powered external HD connected to the n810. I just used the standard cable with a Female/female usb adapter to connect all the cables together - no other hardware. The instructions are the same for the n810 as it is for the n800. I want to do some throughput tests but haven't had a chance to yet.

Re: USB 2.0 OTG on N810
 

Great!! that's what I was talking about!!

and
Actually the thread is USB 2.0 OTG on N810, and if the device requires power you will not get it to work without it.
I would prefer not to haul around an adapter plus a powered hub, I would like to be able to use a minimal battery pack to power a thumb drive.

Re: USB 2.0 OTG on N810
 

And it's exactly what I said to do.

Thanks for the attitude, but the topic I was replying about was something specific: the USB cable or adapter needed to use the N810 in host mode.

Besides, you're not exactly right with your statement as the N810 does seem to provide power, just not enough current for all types of devices.

And there's no reason to address the power issue anyway unless I were talking about specific devices and whether or not they need more power. The question of how to boost the current if you need to isn't a mystery. You just need to decide on your own solution. Portable hubs get pretty small, but if that's not small enough get a Y-cable to power the device via a battery pack while it's connected to the N810.

Google will tell you how to build the battery pack and it will also find you the Y-cable you need for a couple bucks.

Or find something like this (though I didn't read through to see if this is specifically what you'd want): http://www.google.com/products?q=%22...&lmode=unknown

You may even be able to find some kind of USB adapter with a built-in battery that does the job. I'd check eBay for these kinds of things that tend to come out of Hong Kong.

Re: USB 2.0 OTG on N810
 

Finally ran a quick test on the n810 to see the write/read speeds to my external HD. In short, write 100Megs, 37secs, read 100Megs, 30secs. Only did a single iteration so it's not a very reasonable sample size ;)

Good enough for what I need. I've been using a vosonic X's drive vp3320 with it's external power supply to do the quick test.

Re: USB 2.0 OTG on N810
 

this should work, right?

http://www.amazon.com/USB-Gender-Cha.../dp/B000BSN4UY

Re: USB 2.0 OTG on N810
 

Yes, but probably without the auto-switching. I use one on my n800

Re: USB 2.0 OTG on N810
 

I ran into trouble by setting the host mode enabled in my N810. Now I can't connect to Internet with my phone, but wifi works ok. Can someone please tell me how to disable the host mode (ie. the default value to put to the file that enables host-mode)?

Re: USB 2.0 OTG on N810
 

RE: Gender changers -
It seems one of the best present methods for using the N810 w/ stock cable for a USB stick is to use a USB Gender Changer,A Female to A Female.

Every place I found one on the web it seems they wanted exorbitant prices for shipping ($5 and up per PIECE) and on a PIECE basis, not grouped. I did find one place (Directron ) I've dealt with throughout the years that sells them and lets you combine with other orders.

Thus I needed an IDE DVD burner, they had a good price on what I wanted, I ordered two of the gender changers and the burner, total shipping $8. With just 2 gender changers shipping was $7.

And for anyone that would like to take the hassle of buying a bunch of them and selling them back to the community for low shipping costs (which I thought of doing) you can get 10 of them for $25. Right now they are "on sale" for $3@ or 10 for $25.

Note - don't work for Directron, just a satisfied customer.

Re: USB 2.0 OTG on N810
 

Is there a list somewhere of the USB modules that the n810 kernel has particularly i am wondering if it has the USB-serial module (it creates a serial interface for USB devices)

Also does the n810 support creating PPP sessions does it have the ppp modules.

If both are true i am hoping i should be able to use after putting the device into USB host and having a powered hub plug in my hsdpa modem and create a connection. I have not yet got a n810 but im seriously looking at it as a replacement to my HTC universal

Re: USB 2.0 OTG on N810
 

Just to add to a list of suppliers. I've been using Dealextreme. It does take an agonizingly long time for things to arrive (3-4 weeks) but all my orders have come through yet. I've been using the following gender changer and they're selling it for 1.48$.

http://www.dealextreme.com/details.dx/sku.2646

Now, if they would only start stocking micro usb cables ;)

Re: USB 2.0 OTG on N810
 

PPP support is in the kernel, but for USB to Serial adapters you'll need a module compiled for whatever chipset your adapter uses.

Few modules are included out of box, but pretty much any Linux kernel module can be compiled.

There's a guide to kernel and module compilation for the tablets here: http://maemo.org/development/documen...for_maemo.html