[Bug 288294] [NEW] Dell HAL Bluetooth kill switch doesn't operate properly on several platforms

[Mario Limonciello]

Public bug reported:

Binary package hint: hal

When HAL detected that libsmbios-bin is installed (as is the case with
the default ubuntu-desktop install), it adds kill switch interfaces for
Dell Bluetooth adapters.  Unfortunately, the way that it uses this kill
switch interface, it explicitly disables the hardware switch.

On some laptops, the BIOS SMI interface does not allow the software
radio kill switch to turn on and off the bluetooth adapter.  This causes
the users to encounter a situation that the hardware switch has been
disabled, and using a software switch, they can't turn the adapter back
on.

To combat this problem, there is a two part solution:

1) The hardware kill switch needs to *not* be disabled.  Users that have a functional software kill switch will not be affected.  Users without a software kill switch will now be able to still modify with the hardware switch on their laptop.
2) A UDEV rule needs to be provided so that when the device is removed from the bus via the hardware kill switch, it will be switched back into HCI (Radio) mode.

** Affects: bluez (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: hal (Ubuntu)
     Importance: Undecided
         Status: New

** Also affects: bluez (Ubuntu)
   Importance: Undecided
       Status: New

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Dell HAL Bluetooth kill switch doesn't operate properly on several platforms
https://bugs.launchpad.net/bugs/288294
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