linux-kernel - Re: rtc max frequency setting

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Date:	Sat, 04 Aug 2007 17:06:38 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Jan Engelhardt <jengelh@...putergmbh.de>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	rtc-linux@...glegroups.com
Subject: Re: rtc max frequency setting

Jan Engelhardt wrote:
> Hi,
> 
> with the old rtc.ko module, there was a /proc/sys/dev/rtc/max-user-freq 
> that could be set. With rtc_cmos.ko (or the new rtc infrastructure in 
> general), I am missing this file. Where can I set the max-user-freq now, 
> or is this obsolete now? (mplayer prefers to have user-freq to be >= 1024.)
> 

Qemu wants something like this too.  Both of these really want something
else, which is a high-frequency userspace timer.

What is the best way to do that on modern kernels?

	-hpa
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