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From: Andriy Gapon <avg@FreeBSD.org>
Date: Tue, 12 Oct 2010 17:53:01 +0000 (UTC)
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Subject: cvs commit: src/sys/dev/acpica acpi_ec.c
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avg         2010-10-12 17:53:01 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/acpica       acpi_ec.c 
  Log:
  SVN rev 213737 on 2010-10-12 17:53:01Z by avg
  
  acpi_ec: changes in communication with hardware
  
  Short description of the changes:
  - attempt to retry some commands for which it is possible (read, query)
  - always make a short sleep before checking EC status in polled mode
  - periodically poll EC status in interrupt mode
  - change logic for detecting broken interrupt delivery and falling back
    to polled mode
  - check that EC is ready for input before starting a new command, wait
    if necessary
  
  This commit is based on the original patch by David Naylor.
  
  PR:             kern/150517
  Submitted by:   David Naylor <naylor.b.david@gmail.com>
  Reviewed by:    jkim
  MFC after:      3 weeks
  
  Revision  Changes    Path
  1.91      +89 -83    src/sys/dev/acpica/acpi_ec.c