On 2014-07-08 19:14, Dirk Hohndel wrote:
On Tue, Jul 08, 2014 at 02:42:57PM +0200, Benjamin Kuch wrote:
Im embedded software developer at Seabear diving technology.
Currently we
have one dive computer on the market (Seabear HUDC). Three others will
follow soon. We would like to be integrated in subsurface. All our
devices
have a mass storage mode in which the log data (.csv files) gets
provided.
What has to be done to get integrated in subsurface?
Most dive downloading from divecomputers is done via libdivecomputer.
I'll
let Jef respond how he envisions something like this could be
integrated.
The other DC that I'm aware of that uses a storage mode based interface
(the Uemis SDA) right now is integrated directly into Subsurface.
It depends a little bit on how exactly Seabear exposes the dive data to
give a better answer. What's the directory structure in that virtual
filesystem? How are the files named, what's the content?
With a mass storage mode, you don't really need libdivecomputer. You're
not really downloading any dives, but importing files from disk. I think
this is more suited to implement directly into the application as an
file importer. Whether the file is stored on a regular harddisk or a
dive computer with mass storage mode doesn't really matter. Trying to
implement this as a libdivecomputer backend might be difficult, because
libdivecomputer is designed to deal with communication protocols, not
file imports.
The Uemis is different in this regard, because it (ab)uses the
filesystem as a weird two way communication mechanism. I assume that's
not the case here, and the Seabear device uses mass storage in a sane
way. Similar to how the HW DR5 uses mass storage mode to export the
dives as UDDF files.
Jef
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