Nexus One USB host driver

[cartoonmonkey]

If any of you have pictures or plans of your nice battery powered small connectors / docks you've made, I'd like to see them!

 

[rumborak]

Hmm, the USB audio cards are giving me a lot of trouble. I have tried a good number of them by now, but none of them works properly in full duplex mode. The fact that different cards show different amounts of capability (even though under Windows they all work perfectly fine) seems to indicate to me that it's the Linux USB audio module that's causing the trouble. Or the OSS emulation, one of the two.

 

[KeiAiAm]

Sorry if I'm just bumping into here, but I'm kinda new to Android and I just got a small question to make my mind clear again as I'm a little confused right now :S

The kernel is basically the core of the whole Android OS right?
So if I'd download the (precompiled?) files you provided, they would basically overwrite my 2.1 kernel? Would there be any problems with the "rest"? What is basically next to the kernel?

Hope you can help me out
Greetings

 

[sonic74]

The kernel is basically the core of the whole Android OS right?

An Android device has two "cores": the kernel and the Android framework.

So if I'd download the (precompiled?) files you provided, they would basically overwrite my 2.1 kernel?

I recommend you use

fastboot boot zImage

to test it. After the next reset, your original 2.1 kernel is active again.

Would there be any problems with the "rest"?

Maybe, since my binaries are for Android 2.2

 

[KeiAiAm]

Ok thanks for your quick response, I think I get it now.

Just one last question: The file your providing for download is the Kernel right?

 

[rumborak]

Well, there's also the modules, if you want to count that into the kernel.

 

[roastlechon]

Could this work?
http://www.amazon.com/dp/B003HHK58U...e=asn&creative=380341&creativeASIN=B003HHK58U

I have an external usb hub already, but it has mini-usb instead of micro-usb upstream port.

So same concept:

N1 <--- OTG ---<<Male-----Y-----Male>HUB<------------POWER

-----Mini>HUB<------------USB-Device​

HUB
HUB is the hub for visual text explanation :/

 

[sonic74]

Could this work?

I think so.

I have an external usb hub already, but it has mini-usb instead of micro-usb upstream port.

I haven't seen a hub with a micro-usb upstream port yet.

I posted a photo on the bottom of the website to make the wiring more clear.

 

[roastlechon]

I think so.



I haven't seen a hub with a micro-usb upstream port yet.

I posted a photo on the bottom of the website to make the wiring more clear.

Doesnt the hub you use use a micro-usb upstream port?

 

[sonic74]

Doesnt the hub you use use a micro-usb upstream port?

No, two of them use a B socket and one of them an A plug. The only component with a micro-usb plug is the OTG cable.

 

[Chopes]

Hrm, did you end up having success with that product?

 

[roastlechon]

Not yet, they are shipping now though, so hopefully Ill get it up before the end of the week. Ill post the results here.

 

[tocixxx]

Hi !

I found this and today i will try to implement my first kernel patch ever ...
I will try to integrate your mods in the actual cyanogen kernel and i´ll try to get this working on a G1.

I just have one question about the setup.
As far as i understand the N1 does not supply the necessary voltage over USB.
That´s why you use an active USB hub right ?
Would it be possible, if you use a USB-hardware which does not rely on bus power, to use it without the hub ? or does the controller chip in the N1 need the power supply ?

 

[sonic74]

As far as i understand the N1 does not supply the necessary voltage over USB.
That´s why you use an active USB hub right ?

Right.

Would it be possible, if you use a USB-hardware which does not rely on bus power, to use it without the hub ?

Not without providing power to the device's Vbus pin.

or does the controller chip in the N1 need the power supply ?

A hub chip is definitely powered by the uplink port Vbus pin. And it seems every other device, too: I just tried to plug in my self-powered printer, it's not recognised.

 

[tocixxx]

OK, I see

Seems like to voltage on the VBUS-Pin is like a "remote" control for the attached devices, even if selfpowered...

Hmm,... quite a disadvantage in the usability...
anyway.. I`ll try to apply the patch anyways and sort out the errors.

Did you see, Andrew de Quincey, has made a lot of improvements to his implementation ?

I took a look at the new patch and this incooperates a lot more work...

 

[sonic74]

Did you see, Andrew de Quincey, has made a lot of improvements to his implementation ?

Do you mean the function/gadget framework? I don't have a need for this. I documented substitutions over TCP/IP on the website.

 

[pikipirs]

Not all USB hubs need power on the host cable...

I have Trust HU-5870V 7-port USB hub and it has power in the host cable when it's connected to the power adapter. I know this because my notebook (when the hub is connected to it) is half-alive even if the notebook itself doesn't have any power. Stuff like wifi/bluetooth light and dvd-rom are turned on (dvd tray is ejectable), and if I unplug the USB hub, they turn off.

I just received the OTG cable today and I tried it with this hub. It doesn't need any additional cables, apart from power block and the OTG cable. No dual-power USB cable needed. The nexus is charging when connected over OTG.

 

[sonic74]

I have Trust HU-5870V 7-port USB hub and it has power in the host cable when it's connected to the power adapter.

Perfect for the Nexus One, but isn't this extremely dangerous with PCs? Both the hub and the PC providing power to Vbus, isn't that a short circuit?
Nevertheless, I ordered one.

 

[ManticoreX]

Great job with this. I am planning on trying to set this up soon, but I have a quick question. On your webpage you have

Substitute device mode (or port Andrew de Quincey's work)
Use adb over TCP/IP
adb connect IP_address:5555
Filesystem access
Nexus One's
On Air (Vista/7 registry patch)
PC's
insmod fs/cifs/cifs.ko
mount -t cifs -o username="username",password="password" //IP_address/share /mnt/sdcard/cifs

Could you explain this step a little more. Do I need to use a PC to enable this every time or can this step be done directly on the phone. My plan is to be able to have a usb keyboard I could use with the phone anywhere for taking notes, writing documents etc.

 

[sonic74]

Do I need to use a PC to enable this every time or can this step be done directly on the phone.

There I describe how to substitute the USB client mode. This is only neccessary if you want to use adb or access files on the phone from the PC.
The steps for keyboard support can be started by a small script that you start with ConnectBot on the phone.