Suunto D5 USB interface

[Brendan Horan]

----- On 16 Dec, 2019, at 10:16 PM, Anton Lundin glance at acc.umu.se wrote:
> 
> So, the real error we hit here is that LIBUSB_ERROR_BUSY . We try to
> open the device but we get a error as answer.
> 
> Why does subsurface get a LIBUSB_ERROR_BUSY, when dctool can open the
> device just fine, thats the question.
> 
> 
> The appimages libdivecomputer is build directly against libusb, is your
> local build against hidapi ?
> 
> You can check with `grep -i hid config.h` in your libdivecomputer build
> tree.
> 
Now this gets interesting. I think I am using libusb :

/t/libdivecomputer (master|…) $ grep -i hid config.h
/* hidapi library */
/* #undef HAVE_HIDAPI */
/t/libdivecomputer (master|…) $ grep -i usb config.h
/* libusb library */
#define HAVE_LIBUSB 1
/t/libdivecomputer (master|…) $