Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 25 Sep 2002 05:43:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 25 Sep 2002 05:43:48 -0400 Received: from smtp015.mail.yahoo.com ([216.136.173.59]:32784 "HELO smtp015.mail.yahoo.com") by vger.kernel.org with SMTP id ; Wed, 25 Sep 2002 05:43:48 -0400 Subject: Re: Polling /proc/apm causes usb hiccups and clock drift From: Thomas Hood To: linux-kernel@vger.kernel.org Cc: jstrand1@rochester.rr.com Content-Type: text/plain Content-Transfer-Encoding: 7bit Message-Id: <1032947264.15722.9.camel@thanatos> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.0.7 Date: 25 Sep 2002 05:48:51 -0400 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 747 Lines: 22 James D Strandboge wrote: > polling /proc/apm causes the webcam in xawtv to skip. > [...] > Is this a kernel apm bug or BIOS problem? The apm driver calls the APM BIOS with interrupts disabled each time /proc/apm is read. This appears to be taking too much time away from video processing. __________________________________________________ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/