This avoids open()ing and close()ing multiple times on hotplug -- which in
itself isn't a huge problem as the requests are refcounted in libusb, but it
matters hugely when a plugin accidentally closes a device that was not opened.
As all the devices are going to be opened anyway (to read the vendor strings)
and the cost of keeping the device is open is tiny, just get libgusb to
auto-open *all* devices and keep them open for the duration.
Fixes: https://github.com/hughsie/fwupd/issues/155
When reading with g_dir_read_name() the returned files do not have to be sorted
in any particular order and could even change between invokation. This patch
makes debugging the interactions between plugins much easier.
The items that 0.6.13 requires are now guarded by a version test.
This should allow running fwupd master on more distros that haven't
yet picked up appstream-glib 0.6.13.
We used to do this dance to avoid reading the Option ROM on hardware by default
(some faulty hardware would crash...) but now we're doing the verify update in
the daemon there's no need to split this into two steps.
Fixes: https://github.com/hughsie/fwupd/issues/149
The idea here is that we move a lot of the 'meat' out of fu-main into the
engine. This also lets us simplify a lot of things and ensures the user
authentication is simple and easy to audit.
