The exact OSTC variant can be detected by means of the serial number.
Each of the three variants is now assigned an artifical model number,
and included explicitly in the list of supported models.
There appears to be two very different versions of the Sherwood Insight.
The old Insight needs the veo250 backend, while the newer Insight 2
needs the atom2 backend. Currently only the newer version was included
in the list of supported devices, and to increase the confusion it was
even named after the old version.
With this patch, the old version is added to the list, and the new
version is renamed to "Insight 2".
Applications can now enumerate all the supported devices at runtime,
and don't have to maintain their own list anymore. The internal list
does include only those devices that have been confirmed to work at
least once without any major problems.
As the name already indicates, a device descriptor is lightweight
object which describes a single device. Currently, the api supports
getting the device name (vendor and product) and model number. But
this can extended with other features when necessary.
