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-   -   N800 USB Host Mode Experiment (https://talk.maemo.org/showthread.php?t=4177)

TheGogmagog 2007-12-11 15:42

Re: N800 USB Host Mode Experiment
 
Quote:

Originally Posted by Mara (Post 106741)
I does work fine, but you need manually set the N800 to host mode. (Adapter does not have the ID pin configured for automatic operation (OTG).)

UPDATE: Since the other connector is 4-pin jack... it can't physically support OTG... But manual (forced) configuration works fine.

Can someone add the forced instructions to the wiki? This would be good for those using a plain gender bender and those of us not willing/able to ground the x pin.

I have a cable that physically lets me connect a USB flash drive, but it doesn't auto-register in file manager. I'm not sure what to do at this point. I've tried two things with no success, the commands wern't recognized (I did gainroot, I think). Can it be done without gaining root or red-pill mode?

DeeJay_XB 2007-12-11 17:27

Re: N800 USB Host Mode Experiment
 
ok i can confirm that usb pc keyboard is working perfect!can even use alt-tab to switch widows or f6 f7 f8 to full screen mode or zoom in/out ! how about a usb mouse? i've pluggd in a usb mouse but it doesn't do anything... maybe there needs to be a driver implemented to make the mouse work... please someone make a usb mouse work too :) PS: this things are witten with my full sized usb keyboard :D

djs_tx 2007-12-11 18:20

Re: N800 USB Host Mode Experiment
 
Quote:

Originally Posted by torx (Post 106791)
Alright alright, my bad! :D

Now let me try again.

I HAVE FINALLY FOUND THE CORRECT ONE!


http://www.twstore.com/gcusbafxm.html

It even says OTG-compatible, so I am 110% sure! :)

Anyway, it's 1 for $9.99 and 2 for $13. If you look at the info page, it says a $4 handling charge will be levied on orders under $10. So be smart and get 2 instead of 1!

I'd still test it before you post "110% sure". I'm not sure that "OTG compatible" is the same as "will induce OTG mode in an N800".

OTG compatible to me just means the pins are routed correctly to plug a slave device into a OTG compatible slot.

I don't think OTG compatible means "pins 4 and 5 are tied together so that the OTG chipset on the N800 will auto switch to host mode"

I'm looking at buying some connectors from Molex and building my own setup.

David

Mara 2007-12-11 18:24

Re: N800 USB Host Mode Experiment
 
Quote:

Originally Posted by DeeJay_XB (Post 107223)
ok i can confirm that usb pc keyboard is working perfect!can even use alt-tab to switch widows or f6 f7 f8 to full screen mode or zoom in/out ! how about a usb mouse? i've pluggd in a usb mouse but it doesn't do anything... maybe there needs to be a driver implemented to make the mouse work... please someone make a usb mouse work too :) PS: this things are witten with my full sized usb keyboard :D

Can you tell what brand/type keyboard are you using?

The reason I'm asking, that you might have found a very low power consuming keyboard. Earlier reports about USB keyboards I have seen before complain about dropped characters, etc... which is likely due to insufficient current supply from N800.

If you look at dmesg logs, how much it says you still have current budget left?

Benson 2007-12-11 18:51

Re: N800 USB Host Mode Experiment
 
Quote:

Originally Posted by djs_tx (Post 107239)
OTG compatible to me just means the pins are routed correctly to plug a slave device into a OTG compatible slot.

I don't think OTG compatible means "pins 4 and 5 are tied together so that the OTG chipset on the N800 will auto switch to host mode"

As I understand it, OTG compliant would mean that it works right. Of course, compatible can either mean "works" or "can be persuaded to work"; as this connector is not permitted for truly compliant cables (you're supposed to use the micro connector like on the N810), one that's right would have to be merely compatible, and one that's "close enough" would probably still say it.
But I'd be 90% certain it's good, and if not, it's still a cable.:)

sjgadsby 2007-12-11 18:55

Re: N800 USB Host Mode Experiment
 
Quote:

Originally Posted by torx (Post 106791)
I HAVE FINALLY FOUND THE CORRECT ONE!


http://www.twstore.com/gcusbafxm.html

It even says OTG-compatible, so I am 110% sure!

I bought two of those from Tech World Store a month or two ago in anticipation of the USB OTG support in OS2008. I had hoped that they were wired up correctly to let OS2008's automagic mode switching work. They aren't.

endzeit 2007-12-11 22:35

Re: N800 USB Host Mode Experiment
 
Any news on using a wifi usb stick with packet injection on the N800? (:

tarkness 2007-12-11 23:57

Re: N800 USB Host Mode Experiment
 
n800-IT-OS-2008 with self-built none OTG cable:

i`m using an logitech full sized keyboard without external power (without any dropped characters and even the right leds switch on if you press LOCK-buttons; num-block, F-keys, ctrl, super-/windows-key and "right-click-key" are working fine, too)

a friends mp3-player and a digi-cam (both self-powered) also auto-mounted and filemanager popped up to show the files

i need a POWERED usb hub for:
-a card reader (CF and MMC cards mount fine, transfers real fast and even filemanager pops up and shows the files.. other cards not tested)
-another keyboard (i think it`s from hama) with integrated usb 2x hub; disassembled it and found out that the usb-hub-ports are mounted on a little board where some other keys (play, stopp, volume +/-) are mounted.. i assume that this board/keys/hub-ports need too much power to run without powersupply

now it`s even more fun with the ITs ;) :D

endzeit 2007-12-12 00:04

Re: N800 USB Host Mode Experiment
 
Are there any portable and powered usb hubs?
(would be lovely if working with standard batteries)

Johnx 2007-12-12 00:52

Re: N800 USB Host Mode Experiment
 
I've used the CyberPower 420MP battery powered usb hub on my Zaurus C1000's USB OTG port. It runs on 4 included rechargeable AAA batteries and can also be plugged into AC to charge with a *not* included AC adapter. It can also charge from a desktop's USB port.The bad news: It's not powerful enough to spin-up a 1.8" USB hard drive. It's really close but even if it worked I'd be worried about it running out of juice during file transfers. It *is* powerful enough to run a USB flash memory stick that the Zaurus refused to work with when it was directly plugged in. Anyways, I guess it's buyer beware, but it only costs ~$20.

-John


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