Date: Sun, 30 Sep 2001 16:04:50 -0500 From: Bart Kus <bsd@shell-server.com> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: hackers@freebsd.org Subject: Re: sio modification Message-ID: <200109301600.21610@EO> In-Reply-To: <5135.1001873896@critter> References: <5135.1001873896@critter>
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On Sunday 30 September 2001 13:18, you wrote: > It's in sio.c already. Sorry to bug you again, but it seems that the PPS driver for sio doesn't support PPS_CANWAIT. Am I correct in that assessment? Without blocking, I don't see any other mechanism for event-driven execution. The RFC seems to hint towards sampling at the Nyquist frequency in the case of a missing PPS_CANWAIT. Establishing an 80kHz loop is pretty much impossible given the 100Hz resolution of nanosleep() and friends. --Bart To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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