Messages in this thread |  | | Date | Fri, 6 Dec 1996 01:23:35 -0500 | From | "Theodore Y. Ts'o" <> | Subject | Re: new NTP/PPS patch available |
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From: "Ulrich Windl" <ulrich.windl@rz.uni-regensburg.de> Date: Mon, 2 Dec 1996 08:23:34 +0100
Now it's also in the interrupt routine (of the serial driver). I'm afraid you are talking about new features I haven't heard about. Is there an option to get the time-stamp of an interrupt? That would be what I need, but currently the time-stamp is only taken if it's definitely needed, and not for every serial interrupt.
No, I was talking about adding such an option. Yes, the disadvantage is that you will be taking a time-stamp for every interrupt on that irq (instead of just when the carrier detect line changes). But the place where you are doing the time-stamp will be much cleaner, and result in more accurate times for the PPS calculations.
I also got the suggestion to add a streams-like ioctl for timestamping.
I have no idea what the person meant by that suggestion....
- Ted
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