Re: [libusb] INVALID_PARAM when reconnecting to device after disconnect

[Tim R. <ti...@pr...>]

Dean Sands wrote:
> Tried a dumb thing.
> The device I'm getting from the hotplug arrival event isn't usable.
> I open a handle and make a few token attempts to claim the interface.
> When that fails I close the handle.
> Then I search for the device again and connect to that.

Are you saying you got it to work?

In general, as soon as you know a device is unusable, you should close 
the handle.  As long as your handle remains open, the kernel cannot 
clean up the remnants of the previous instance, and that can cause 
confusing problems and duplicate instances.

-- 
Tim Roberts, ti...@pr...
Providenza & Boekelheide, Inc.