Re: [RFC PATCH 0/2]: hw timestamp support

[Guy Harris <guy () alum mit edu>]

On May 24, 2010, at 7:26 AM, Mcmillan, Scott A wrote:

> This patch adds the capability to select the packet timestamp source.  It also adds support for the PACKET_TIMESTAMP 
> Linux kernel setting to specify the source of packet timestamps.  The corresponding Linux kernel patch is being 
> submitted concurrently.

Is there a way to ask the driver (e.g., an ioctl) which, if any, time stamp options it supports?

That would be useful in an pcap API to get that, so that a GUI-based packet analyzer would know whether to offer a 
choice of packet timestamp types and, if so, which types to offer.

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