From owner-freebsd-acpi@FreeBSD.ORG Wed Jan 16 23:12:37 2008 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B836E16A417 for ; Wed, 16 Jan 2008 23:12:37 +0000 (UTC) (envelope-from takeharu1219@ybb.ne.jp) Received: from ybbsmtp11.mail.ogk.yahoo.co.jp (ybbsmtp11.mail.ogk.yahoo.co.jp [124.83.153.131]) by mx1.freebsd.org (Postfix) with SMTP id 38B3413C44B for ; Wed, 16 Jan 2008 23:12:37 +0000 (UTC) (envelope-from takeharu1219@ybb.ne.jp) Received: (qmail 32967 invoked by alias); 16 Jan 2008 23:12:36 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=ybb20050223; d=ybb.ne.jp; h=Received:X-Apparently-From:Message-ID:Date:From:User-Agent:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=xKVCpUiiQNu8dapYgfgjVwW7M0sWoM8Kdzbq22h1JnHsN0wVMgkUZWi/EMg899QrSjRqcc39POvoJHbRZfWKiV9GFAiXU/uijdX9tPdUErpBOgiSlbQsrKNdjLsu7Rdy ; Received: from unknown (HELO ?192.168.1.20?) (takeharu1219@219.35.170.86 with plain) by ybbsmtp11.mail.ogk.yahoo.co.jp with SMTP; 16 Jan 2008 23:12:35 -0000 X-Apparently-From: Message-ID: <478E8F50.2050105@ybb.ne.jp> Date: Thu, 17 Jan 2008 08:12:16 +0900 From: Takeharu KATO User-Agent: Thunderbird 1.5.0.9 (Windows/20061207) MIME-Version: 1.0 To: John Baldwin References: <200801161440.m0GEe4iI081025@freefall.freebsd.org> <200801161348.20529.jhb@freebsd.org> In-Reply-To: <200801161348.20529.jhb@freebsd.org> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-acpi@freebsd.org Subject: Re: kern/112544: [acpi] [patch] Add High Precision Event Timer Driver for userland timer facility X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Jan 2008 23:12:37 -0000 Hi, Thank you for your comments. > I've added an acpi_hpet.h after looking at this PR though it's a bit > different. The current stuff in CVS doesn't have the user timer driver to > allow user processes to use HPET timers, but I'm not sure if we really want > that. > IIRC, phk works about new callout facility which uses high precision timer facility(i.e. HPET etc...). The new timer facility may be good replacement of timer drivers for user lands(rtc driver in ports uses callout, so new timer facility may improve user land timer if it is really needed.). So I think that this PR can be closed. But some people sent e-mails to me, and these people seems to want timer driver for user lands to some extent(Some multimedia player (i.e. mplayer) uses user land periodic timer at least.) Regards,