But there's nothing in /dev like tty or usbmodem. As you see in my lsusb I'm using a usb hub there to attach my modem. But if I attach it directly without the hub, the modem is known as 201e:10f8 and I can do modprobe usbserial vendor=0x201e product=0x10f8, then 4 tty will be available in /dev

PS ...

spondbob@bikinibottom ~
$ lsusb
Bus 001 Device 006: ID 05c6:f000 Qualcomm, Inc.
Bus 001 Device 005: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 001 Device 004: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]
Bus 001 Device 003: ID 0424 ...

hi Josh, could u give me some idea about this?
hi Josh, i've a question
how can i have the driver that match my kernel name? because some time i like to try some custom rom n of course i need the driver that match the kernel. can i just compile the driver's source? could u give some step-by-step ...

hi Josh, i've a question
how can i have the driver that match my kernel name? because some time i like to try some custom rom n of course i need the driver that match the kernel. can i just compile the driver's source? could u give some step-by-step tutorial to do that, i dont know exactly how to do ...

hi Josh,
do you think my tab GT-P7310 still need powered hub? i think only smaller tab like 7" need powered hub

Your adapter is actually more than a simple USB port. It provides a card reader and a USB socket; these count as two devices.

In order to provide two devices, there must already be a hub built into the adapter. So you have additional error sources and two more power consumers (internal hub and ...

There is no other way. The wide plug for the Samsung side has a wiring that tells the tablet to switch from USB device mode to USB host mode.

I have a cheap and simple adapter too, and it's working well on my GT-P5113 with a four-port powered hub.

i use this adapter http://www.ebay.com/itm ...

i've tried all possibility to plug the device but still nothing happen. does my adapter type can be the cause? do i have to use the OTG one which is just cable and the usb port at the end?

The cable brand is irrelevant. You need a hub with external power . The tablet most likely doesn't deliver the full 500 mA.

I have a Galaxy Tab 2 7.0 - there is no way 3G dongles work without a powered hub.

Look at this thing for example:
http://www.amazon.com/Port-Charger-Samsung-Galaxy-N8000/dp ...

i just affraid if actually my adapter cannot supply power for the usb dongle, i'm using GTab 8.9 P7310. i'm using this one http://www.amazon.com/SUNVELL-LZ4L00000004-Ultraslim-Connection-Adapter/dp/B009R6C402 and it's working for flashdrive but not for mouse/keyboard (i dont know why maybe the rom ...

i just flash my tab back to 4.0.4 with kernel version 3.1.10-1133979 but i got driver not found in the widget. here's the log :


USB_ModeSwitch log from Fri Dec 14 17:58:29 GMT 2012

Raw args from udev: 1-1/1-1:1.0

Using top device dir /sys/bus/usb/devices/1-1
----------------
USB values from ...

i just update to your newest version, now the widget said no driver found. here's the log :

USB_ModeSwitch log from Fri Dec 14 15:21:12 ICT 2012

Raw args from udev: 1-1/1-1:1.0

Using top device dir /sys/bus/usb/devices/1-1
----------------
USB values from sysfs:
manufacturer Qualcomm ...

spondbob ,

your device seems to lack the drivers for the serial port (not unusual with Samsung devices).

I have decided to provide driver modules for very common devices (Samsung, Nexus) on this site. Your's is not listed yet, so I need the exact kernel name (see device settings, menu entry ...

here's mine on GT-P7310 using 4.1.2 :


USB_ModeSwitch log from Fri Dec 14 10:43:11 ICT 2012

Raw args from udev: 1-1/1-1:1.0

Using top device dir /sys/bus/usb/devices/1-1
----------------
USB values from sysfs:
manufacturer Qualcomm, Incorporated
product Qualcomm CDMA Technologies MSM
serial ...

same thing happen to my GT-P7310 using Android 4.1.2 version, stuck on "Prepare device ..." and the light on modem keep on red mode
any ideas guys?