Re: [Libusbx-devel] libusb_control_transfer() stalls

[Pete B. <pe...@ak...>]

On 2012.06.12 22:18, Markus wrote:
> I don't see any debug messages (though I enabled the libusbx debug
> facility in my code, level 3).

Try level 4. 4 is the level to set for debug, not 3.

If you're using a version earlier than 1.0.11.10519, you will also have 
to compile with either --enable-debug-log if using MinGW/cygwin, or turn 
the debug logging option on in msvc/config.h.

But if you're using an older version, I would advise you to upgrade 
first (we have an 1.0.12-rc1 available, along with Windows binaries 
which I just uploaded) as it makes it a lot easier to obtain debug info 
there: If your program is a console application, you can just set the 
environmental variable LIBUSB_DEBUG to 4. Or you can just use 
libusb_set_debug(NULL, LOG_LEVEL_DEBUG) at any time during your program.

> Would I see the WinUSB error code in the libusbx debug log?

You should at least get an extra message indicating the stall detection.

Regards,

/Pete