New to libdivecomputer. Where do I begin?

[Ryan January]

I appreciate the help Dirk.  I wasn't sure where libdc stopped and subsurface began.  This would be along the lines of your first scenario;  Importing existing files and parsing the logs. If devices of this sort are already supported in subsurface, that seems to be the path of least resistance.  

I'm afraid I can't mention the file format as that would expose some key details about the device.   My desire at the moment is to develop what I can, test those integrations while testing the device, and ultimately submitting a pull request when I'm able.  What I can say is that the files are simple, unencrypted binary files that have parsing libraries available in many common languages.  I just finished testing the files were parsable via a short python script, and have subsequently confirmed the existence of an SDK that could assist me with some of the heavy lifting in C.

Now that I know the correct path to follow I'll start looking through the subsurface source.  Is there a particular computer you could point me to as a good mass storage integration example?  

Thanks again,
Ryan

> On Jun 20, 2017, at 11:31 AM, Dirk Hohndel <dirk at hohndel.org> wrote:
> 
> That depends. What format are these files in? We support a number of such dive computers simply by importing and paying their log files directly in Subsurface.
> 
> Or is the storage abused as a way to communicate with the dive computer by writing and reading magical files? There is one dive computer like this that is supported directly in Subsurface: the Uemis Zurich.
> 
> I don't think libdivecomputer has a good way to support for system based dive computers at this point.
> 
> /D
> 
> -- 
> From my phone
> From: Ryan January 
> Sent: Tue Jun 20 08:31:56 PDT 2017
> To: devel at libdivecomputer.org
> Subject: New to libdivecomputer. Where do I begin?
> 
> Hello,
> I've been a libdivecomputer user (through subsurface) for a number of years.  I'm in possession of a dive computer that is undergoing user testing now.  I've been looking for an area I may be able to contribute to for a few years and feel this may be an interesting opportunity.  My biggest issue is that I'm not sure where to begin the development process. 
> The computer exposes itself as a USB mass storage device.  Dive logs are located in a known folder, and are stored in a file format which is well documented.  Considering I'm not seeing any currently supported computers exposed as storage devices, is this support something that would even be desired and/or possible?  As I understand it there is an IO refactoring that's potentially in the works.  If desired, is now a bad time to start this process?
> 
> Thank you,
> Ryan
> 
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