pwr/Solaar — pull request #41 by Lekensteyn (2013-05-05 16:19:00+00:00)
Title: scan-registers: determine available notifications

00 is documented in HID++ 1.0 specification, it should be safe to set the 00
register. As another program may have written the notifications register
already and since enabling notifications has side-effects such as "disabling"
certaing functions, restore the flags after reading out available notifs.
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This information is useful to discover additional features on HID++ 1.0 devices.