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From: Thomas Hood <>
Subject: Re: Polling /proc/apm causes usb hiccups and clock drift
Date: 25 Sep 2002 05:48:51 -0400	[thread overview]
Message-ID: <1032947264.15722.9.camel@thanatos> (raw)

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.

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             reply	other threads:[~2002-09-25  9:43 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-25  9:48 Thomas Hood [this message]
  -- strict thread matches above, loose matches on Subject: below --
2002-09-24 13:12 James D Strandboge
     [not found] ` <>
2002-09-25 12:39   ` James D Strandboge

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