maemo.org - Talk - N900 will not allow USB OTG!

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

Re: N900 will not allow USB OTG!

I do not expect a hub to work - the software (firmware) on the device needs to explicitly support a hub, which such a device has no real reason to support (of course, it might support it for the simple reason that they used pre existing software that has hub support).. Don't you have a powered USB-HD enclosure?

Re: N900 will not allow USB OTG!

Quote:

Originally Posted by Dave999 (Post 375161)

hi. swedish readers of magazine mobil.se had a chat with klas ström. product manager in sweden. used google transaltor.

Can you link to the article, and maybe someone can translate it better? That Google translation is hard to understand.

Re: N900 will not allow USB OTG!

Quote:

Originally Posted by pelago (Post 375487)

Can you link to the article, and maybe someone can translate it better? That Google translation is hard to understand.

Quote:

Daniel: Hi. I think the N900 is really interesting, but have a couple of questions. In an interview here on mobil.se you mentioned that N900 has digital compass. Does it? (Augmented reality would then be possible ). FM radio wasn't in the speficication but was in the phone anyway! Another feature which is interesting is USB host like the N810 has. Does it have any other gems which haven't been shown yet? Question 2: Maemo Apps/programs will be sold in Ovi Store, and will to a great extent be opensource. But what about larger companies like EA will they sell/develop games for N900? Have read that there are problems with DRM protection or does that only apply to music? Can we expect more games in the same class as Bounce? In other words will you be able to buy programs/games in Ovi store?

Klas Ström: Hi, Before there were plans for magnetometer but unfortunatelly it was removed so it does not have a digital compass. Good GPS features with directions will however come to N900. Both FM radio and USB Host are downloadable via the beta-apps catalog. FM transmitter is included by default. There are many other gems. Nintendo Wii controller which you can connect to N900 and use for the sNES emulator, BT support for mouse and keyboard or USB then if you like. A lot of other fearures and yes several games as well. Like I answered before you will easily be able to see available applications either via Ovi Store or the application manager in the N900.

Grammar and other rmistakes reflect grammar and mistakes in the original text. :P

Re: N900 will not allow USB OTG!

If this is correct, wouldn't we be able to see some sort of usb host package in extras-devel?

I found the "usbcontrol" package in extras-devel. Not sure if that is actively being tried on the n900 or if it was some sort of auto-build/port from os2008 without trying it.

usbcontrol on OS2008

Maybe this was the package to which the guy was referring? It might not even work on the n900. Can anyone with a (pre)production device try it out and let us know?

Re: N900 will not allow USB OTG!

FWIW I literally cut power between the n800 and a powered hub. A keyboard connected to the powered hub worked with the n800. My laptop found the keyboard but got confused and kept disconnecting / reconnecting the keyboard.

If the USB charging is the only issue, that may be a workaround. I would not be surprised if there were also USB driver issues.

If you try this remember to only cut power, not ground. There are pinouts / descriptions of the different wire colors elsewhere online.

Re: N900 will not allow USB OTG!

Quote:

Originally Posted by twoboxen (Post 375661)

I found the "usbcontrol" package in extras-devel.

I'm pretty sure that it was the guy found and just assumed it would work, which it doesn't. It should probably be removed, really!

Re: N900 will not allow USB OTG!

Quote:

Originally Posted by sarahn (Post 375814)

Could you give more detail of your wiring? Specifically, is the ID pin grounded? If so, you have switched the 800 into host mode. One of the problems with the N900 is that host mode is not achieved by grounding the ID pin. N900 lacks internal wiring to register the ID signal, according to reports from Nokia.

Even before that became known, qole had tested (1) grounding of the ID pin and (2) "echo host" command. Neither put the N900 into host mode.

USB charging would be a nuisance for long periods of host operation, but it is a minor problem. The major problem is to find a way of putting the N900 into host mode in the first place.

Re: N900 will not allow USB OTG!

I'm not sure if I really tested grounding the ID pin. I only have an N800, and I used the USB OTG (mini-B) host adapter from jolouis (which has the ID pin grounded) along with a mini-B to micro-B adapter. I assumed that would work to conclusively test the N900's hardware USB host capability.

But I later tried the same set-up with a friend's N810 and discovered that it didn't put his N810 into host mode, either.

By the way, transferring files via WiFi to/from the N900 has been pretty quick and painless. The networking speed on the N900 is much improved over the NITs. The most common method I've used for transferring files has been simply attaching the file to an e-mail. That is really quite a painless solution.

As for other devices, I have managed to get my Stowaway BT keyboard to work with the N900. I haven't tried a mouse yet, since I can't find an inexpensive BT mouse ( < $40 ) anywhere.

Re: N900 will not allow USB OTG!

Quote:

Originally Posted by qole (Post 377454)

The same setup (mini to micro + mini OTG adapter) works for me on N810. It does change the N810 automatically to host mode.

Quote:

By the way, transferring files via WiFi to/from the N900 has been pretty quick and painless. The networking speed on the N900 is much improved over the NITs. The most common method I've used for transferring files has been simply attaching the file to an e-mail. That is really quite a painless solution.

It is not a solution if you are in a classroom and you want to give a file to a friend that only has a usb flash drive.

It is not a painless solution if you want to transfer a 500MB file and your ADSL connection has 150Kbit/s upload.

It is not a solution if you want to transfer files to your MP3 player.

A computer needs USB host functionality.

Re: N900 will not allow USB OTG!

Matan: I suspect the mini to micro adapter that I purchased is somehow causing the OTG adapter to not work, unlike yours. I was just clarifying that I can't say that I have tried hardware OTG host mode switching.