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-   General (https://talk.maemo.org/forumdisplay.php?f=7)
-   -   N800 USB Host Mode Experiment (https://talk.maemo.org/showthread.php?t=4177)

Kozzi 2008-01-06 18:37
Re: N800 USB Host Mode Experiment
 
Anyone here tried DigiTV-tuner or is there any chance for this to work ?

Cptnodegard 2008-01-06 18:39
Re: N800 USB Host Mode Experiment
 
Quote:
Originally Posted by Kozzi (Post 121995)
Anyone here tried DigiTV-tuner or is there any chance for this to work ?
extremely unlikely. that kind of ddevice isnt anywhere near plug and play

niklas 2008-01-06 19:40
Re: N800 USB Host Mode Experiment
 
I would say it's technically possible but you will probably need to do some things:
1. Yuou will need a power source for it like a powered USB Hub
2. You will need to compile a kernel V4L (Video for Linux) driver for it
3. You will need to port some TV Software, V4L is available on the tablet though so the bare minimum would be a simple gstreamer command.

rittf800 2008-01-07 01:12
Re: N800 USB Host Mode Experiment
 
Hi

Just for your information:
I have gotten the following devices to work:
* 3Com USB Ethernet 3C460B, module pegasus.ko
* Future Technology Devices International usbtoserial adapter, module ftdi_sio.ko
* Magellan Explorist 500 in nmea mode, module cdc_adm.ko. With gpsd this one works with maemomapper, the device is /dev/ttyACM0. The Filetransfer mode works too as a regular usb storage device. Beware that the explorist will use the USB connection for powering itself.

All of these with just the regular nokia usb cable, and an A-Female to A-Female adapter.
I compiled the modules myself in scratchbox, following this guide:
http://maemo.org/development/documen...for_maemo.html
and the regular scratchbox and maemo4sdk guides off course.
If someone is interested, I will put the binary modules online somewhere.

rittf800 2008-01-07 01:14
Re: N800 USB Host Mode Experiment
 
More tested devices:
* A cherry usb g83 keyboard
* An IDREAM 512mb mp3 player
And the following, but only through a powered hub:
* Medion 128mb usb stick
* HAMA SDHC cardreader

tz1 2008-01-07 17:25
Re: N800 USB Host Mode Experiment
 
Quote:
Originally Posted by rittf800 (Post 122198)
Hi
* Magellan Explorist 500 in nmea mode, module cdc_adm.ko. With gpsd this one works with maemomapper, the device is /dev/ttyACM0.
Do you mean cdc_acm.ko?

ydant 2008-01-07 17:26
Re: N800 USB Host Mode Experiment
 
Quote:
Originally Posted by tz1 (Post 121534)
The (5G video) iPod apparently wants to recharge or something else so asks for more than 200mA. The nano or the flash only might not have these problems. Also note it will ask for the peak power usage, not average or typical. The question is not whether it needs it (and defragging a full FAT 5G will drop the battery to zero on a PC), but what it asks for.

I should try my old 3g (recharges via Firewire) - it might not ask for much from the USB.

It might also be possible - but dangerous - to override the current check.
Do I remember correctly that the iPod won't charge over USB1, but will still act as a harddrive? Maybe that was another device. IF that is the case, is it possible to force Linux to report the port as USB1 instead? Probably drifting a bit far off topic, but I was hoping to use the N810 and my ipod together once I get around to rigging up the necessary connectors/cable. Thanks for the explanation. :)

jgallen23 2008-01-07 18:07
Re: N800 USB Host Mode Experiment
 
I got my ipod working, but only with a powered usb hub connected to it.

petergunn 2008-01-08 04:43
Re: N800 USB Host Mode Experiment
 
FYI - just tried adding power via 4xAAA NiMH with two different 2.5in usb drives. Has just enough current to spin it up when fully charged but isn't reliable and wont work after a few mins.

Cptnodegard 2008-01-08 09:17
Re: N800 USB Host Mode Experiment
 
Quote:
Originally Posted by petergunn (Post 123027)
FYI - just tried adding power via 4xAAA NiMH with two different 2.5in usb drives. Has just enough current to spin it up when fully charged but isn't reliable and wont work after a few mins.
Tried the same, but with me it wouldnt even spin up


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