Suunto D5 USB interface

[Jef Driesen]

On 2019-12-16 14:27, Brendan Horan wrote:
> ----- 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

That's normal. On Linux, libusb is currently the default because hidapi 
is just a wrapper around libusb.

Jef