Pendrive connected to A780?

[dionisionet]

Hello! I wanna know if I can access to the pendrive when I connected it to the phone with a "mini usb-female usb" usb data cable. Phone->mini usb->female usb->pendrive. Sorry for my English.

[yaworski]

You can't.

[gsfx]

Hi!

As I heard it could be possible, if you get the USB plug on the phone working in the host mode. Therefore the operating system has to be modified. You would need a power supply of 5V as the phone does not supply any power...

Looks like a lot of work...

Best regards

Fred

[dionisionet]

Won't be dangerous given the phone extra 5 volts? Where did you heard it? Thanks

[gsfx]

I think I read it here. The voltage has to be exactly the USB voltage. This wont damage the phone as it is made for being recharged via USB port. I think its a lot of Kernel hacking and a little bit of soldering. You have to get the USB port of the phone working in the USB host mode. As the phone does not supply power to attached USB devices you have to create a power input for the connected devices.

Best regards

Fred

[swifty]

maybe here:
http://www.motorolafans.com/forums/viewtopic.php?t=7267

[peje]

technical it should be much easier to connect an usb harddrive with an powersupply.....

[gsfx]

Hello guys!

Look what I found here:

http://de.mobile-wiki.org/index.php/WLAN_USB-Stick

Its nearly the same as a pen drive its about how to get a WLAN-Stick working with a A780. A little bit of the text is german, but Swifty and me could help you in that matter I think.

Best regards

Fred

[enigma2s]

it's really works?? when I read this I thing they could be e good message for us. but we must wait for some good information in this subject

[gsfx]

It says that there is the possibility, but it needs a lot of attention.

I will try to translate:

An actual discussion about the try to have WLAN via WLAN USB stick with the A780 can be found at www.motoralafans.com. A780 --> "internet over wireless lan? "

The problem is at the moment that the USB chipset is working in the client modus.

The processor can be brought into the host mode via register, but there is a transceiver and it is not known how this transceiver works (linux kernel reengineering is required).

alebm:

"Pxa processor can switch usb relatively easy, but moto put a tranceiver in front of it and we have not much information about that ic at this time. If the tranceiver handles automatically client/host mode, we may have to deactivate de usbd interface and set the pxa regs to host mode. Kernel shows how to activate the transceiver for usb/uart modes(the code is in the misc driver section hehe), but it doesn't comment on usb modes..."

"Yes the ports are independend, I think the kernel driver that came to control port3 will control port2 automatiacally, but there is another ic between bulverde and usb... I~m workin on it but my free time is very tight hehe, setting the port to serial mode is almost working"

"So am I... there are some tricks for detection that may be, if we are luck enough, can trigger the circuit to provide host mode in a780/e680, but it can be only speculation. The thing of usb doesn't charging a dead batery phone can be resolved thru that hehe. The schematics we have of a780/e680 have a few diferences, aparently the usbc(port2 differential io) is connected direct with the pcap output in e680, not in 780. If the host mode thru pcap don't work, e680 may have another try, a780 will be unluck"

The second problem is the power supply, as the USB plug of the phone does not provide power output:

=> solution: (all parts can be bought at www.pearl.de)
1x USB battery pack
1x USB adapter (mini-a-plug > B-jack)
1x USB-Y-cable (plug (data/power) <jack> plug (power) > forwards power to the jack...)
The equipment was made to provide additional power to e.g. HDD´s with high power consumption (connector 2 to be attached to 2nd USB port).

.

Kind regards

Fred