[fpc-pascal] USB Human Interface Devices

[Stefan V. Pantazi]

I would chalk this up to differences between OS versions, configurations,
devices, etc and move on. I see all memory is released. At  least it does
not crash and burn badly.

The function call you want to play with is:
libusb_set_debug
http://libusb.sourceforge.net/api-1.0/group__lib.html#ga5f8376b7a863a5a8d5b8824feb8a427a

Of course, you can set the level dynamically, from your program.



On Thu, Aug 29, 2019 at 12:34 PM James Richters <
james at productionautomation.net> wrote:

> At least I can shut off the messages with that.. but any idea what these
> messages actually mean?   It’s an init_device error but no one was tying to
> do anything but get the list of devices from the system.
>
>
>
> Is there a description of the verbosity level anywhere?
>
>
>
> Is this a variable I can change during program execution without
> re-compiling it?  It would be helpful if I was having an issue to turn on
> debug info, then turn it back off without exiting my program or needing to
> compile.
>
>
>
> James
>
>
>
>
>
> >libusb has a debug verbosity level which currently is set to 3 (i.e.,
> very verbose) in the device open function.
>
> >There is a define in libusbx.pas that you can change to shut off debug
> messages.
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