Add separate devices to open if only some interface information is desired?

If the driver supported an additional set of per-adapter devices that:

• never require administrator access to open;
• do not support capturing or injecting packets;
• do support a small set of ioctls, such as BIOCQUERYOID, with either a whitelist of OIDs or a blacklist of OIDs if necessary, and the BIOCGNUMTIMESTAMPMODES and BIOCGTIMESTAMPMODES ioctls proposed in #174;
• skip all the initialization that change b657dbcf9ef5925c352e1ca39cc23dd475bad7a1 was added to avoid;

that routine could be used to:

• quickly check whether a given device name exists in the adapter-enumeration code, without having to worry about a UAC prompt popping up;
• get the list of supported time stamp types without having to worry about a UAC prompt popping up (so that a GUI sniffer could have a combo box for the supported time stamp types);
• determine the list of supported link-layer types, and whether monitor mode is supported, without having to worry about a UAC prompt popping up (for the same reason).

Start with the adapter-enumeration code and the initialization changes from commit b657dbcf9ef5925c352e1ca39cc23dd475bad7a. Read issue #174 and inspect the existing BIOCQUERYOID, BIOCGNUMTIMESTAMPMODES, and BIOCGTIMESTAMPMODES ioctl handling. Done means a separate per-adapter device can be opened without administrator access, exposes only the requested interface information, and cannot capture or inject packets.