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Date: Thu, 18 Aug 2011 10:53:52 -0700
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Subject: need help with bluez pairing/connecting device
From: Ram Bhamidipaty <rambham@gmail.com>
To: linux-bluetooth <linux-bluetooth@vger.kernel.org>
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I am writing some new software that talks to bluez-4.96.

I have some how gotten a device into a weird state. When I make
a dbus call to org.bluez.Adapter.GetProperties
I see my target device in the list:

       dict entry(
         string "Devices"
         variant             array [
               object path "/org/bluez/8090/hci0/dev_00_22_48_85_50_1D"
            ]
      )


When a device is listed here - what does it mean? I am guessing that
at this point the pairing process is over. Or does it mean something else?

However the device is not yet connected. So I next try to connect:

dbus-send --system --type=method_call --print-reply --dest=org.bluez
/org/bluez/8090/hci0/dev_00_22_48_85_50_1D org.bluez.Input.Connect

This fails with a cryptic:

Error org.bluez.Error.Failed: Host is down (112)

Any help is appreciated.
-Ram