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I am using ubuntu Linux 10.04 Pc in that my Samsung Galaxy 7" (GT-P6210) homeycomb 3.2 is not detecting for development its showing in eclipse as

DeviceMonitor] Failed to start monitoring ???????????? in console

and in device tab its showing ?????????????.

Except this 7' GT-P6210 Samsung tablet all other Samsung devices are showing fine.

When I switch off the tablet and connected to the USB its showing the number and online as status. List of devices attached 4641199B0F8488AE device

why? whats the problem any solution.

NOTE: I already Added 51-android.rules 

Samsung 04E8

and also I enabled the USB debugging mode.

Its working fine in Mac.

I found that only its not detecting in updated ADT r16, except all other ADT version device is detecting very fine.

any idea?

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When adb shows devices as ???????????? it's usually a permission problem and the usb device file. Your udev rules doesn't seem right. Make sure that you have udev configured to something like this:

SUBSYSTEM=="usb", SYSFS{idVendor}=="04e8", MODE="0666"

Where 04e8 is Samsung's USB Vendor ID.

Under Linux there is also an adb_usb.ini from the SDK where you have to add the vendor IDs:

~/.android/adb_usb.ini

# ANDROID 3RD PARTY USB VENDOR ID LIST -- DO NOT EDIT.
# USE 'android update adb' TO GENERATE.
# 1 USB VENDOR ID PER LINE.
0x17ef
0x1949
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  • Oh that's funny, add vendor IDs when it says "DO NOT EDIT" :)
    – Bryan Denny ♦
    Commented Dec 29, 2011 at 16:35
  • You can safely ignore this warning. Just manually add the vendor IDs. More on android update adb can be found here.
    – Flow
    Commented Dec 29, 2011 at 16:46
  • Wasn't saying that you are wrong, I just found that amusing :) But thanks for clarifying it
    – Bryan Denny ♦
    Commented Dec 29, 2011 at 17:00
  • @Flow I just want know why when I switch off the tablet and connected to the USB its showing the number and online as status. adb devices List of devices attached 4641199B0F8488AE device
    – Padma Kumar
    Commented Dec 30, 2011 at 7:50

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