===============================================================================
 Hardware Abstraction Layer
 FreeBSD notes

 Jean-Yves Lefort <jylefort@FreeBSD.org>
 January 1, 2007
===============================================================================

1. Handling of atapicam devices

By default, when an ATAPI device is available through both ata(4) and
atapicam(4), the HAL daemon will use the atapicam interface and mark
the ata device as ignored (info.ignore=true).

If you want the HAL daemon to use the ata interface for a particular
device, add a fdi rule for ignoring the atapicam device (create
/usr/local/share/hal/fdi/preprobe/20thirdparty/10-atapi-device.fdi
with the following contents).

  <?xml version="1.0" encoding="UTF-8"?>
  <deviceinfo version="0.2">
    <device>
      <!-- ignore /dev/cd0; we want hald to use the ata interface -->
      <match key="block.device" string="/dev/cd0">
        <merge key="info.ignore" type="bool">true</merge>
      </match>
    </device>
  </deviceinfo>