Re: [Libusbx-devel] libusb_control_transfer() stalls

[Xiaofan C. <xia...@gm...>]

On Wed, Jun 13, 2012 at 9:17 PM, Markus <li...@ne...> wrote:
> On Wed, 13  13:24 , Pete Batard wrote:
>>
>> When achievable, being able to have a look at the data being sent on the
>> bus usually pays off, especially if you're not sure where to look to
>> find out where the problem comes from.
>>
>
> Thanks, Pete. As Wireshark doesn't capture USB on Windows, it
> looks as I'll have to resort to a proprietary tool.
>
> Can you (or somebody else reading the list) recommend something
> worthwhile in a price range < 500$ ?

You may try some free tools or evaluation version of paid software
sniffer first.

One possibility under Win7 is to use the WinUSB debug trace log.
http://blogs.msdn.com/b/usbcoreblog/archive/2010/02/05/how-to-generate-and-view-a-winusb-debug-trace-log.aspx

If you are running XP, you can use the following two open source
tools.
http://sourceforge.net/projects/usbsnoop/
http://www.pcausa.com/Utilities/UsbSnoop/

The following one is supposed to work under Vista/7 as well
(for x64 version, you need to sign the driver or disable
code signing check)
http://code.google.com/p/busdog/

On the other hand, you can buy a hardware analyzer for US$475.
http://www.totalphase.com/products/beagle_usb12/

-- 
Xiaofan