If you are familiar with Linux I would recommend removing Windows 7 from the
PC and installing Ubuntu instead. It will be a much more stable testing
environment and no driver is needed to use adb.



On Thu, Jul 7, 2011 at 5:08 AM, vennapusa <[email protected]> wrote:

> Hi all,
> i am doing stress testing on the android phone by running the perl
> script on windows 7 PC which uses adb driver for sending commands ,
> which will do some kind of testing on UI applications. while  running
> the test, adb is going offline. even if we do adb-kill-server and adb
> devices , it is still showing  adb offline as follows:
> adb devices     status
> 61324765       offline.
> when i analyse the issue , i found that windows 7 PC is not sending
> USB In tokens to get data from the target device even target is ready
> with data.   Due to which , whenever we type adb kill-server and adb
> devices , USB host is sending only commands to the target , but it is
> not sending the USB IN tokens to get data .  because of this, adb is
> showing as offline.  We are suspecting it as adb driver issue on the
> windows 7 USB Host PC.
> adb.exe application is giving read request to adb driver , but adb
> driver is not scheduling the read request to Hw i think. Due to which
> test is failing as application thinks there is no response from the
> target device.
> So, it has to be debugged from ADB driver on Host PC.
>
> Has anybody encountered this issue and How it could be solved ? Please
> help me on this.
>
> Note: same script is getting executed on Windows XP PC with the same
> andorid phone.
>
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