With Linux 2.6 there is no need to keep the function exports in a
central file and thus the use of syms.c makes no real sense. Remove
it and add the EXPORT_SYMBOL calls to the functions they belong to.

This patch fixes some stupid compile errors when debugging is enabled.

Noticed by Christian Hesse <mail@earthworm.de>

This patch adds a notification callback to the hci_dev structure which
is used by the HCI core to tell the driver about connection creation
and clearing. It also notifies about changed voice setting.

This patch makes sure that the Bluetooth core layer always knows the
current voice setting. It will be read on device initialization and
then stored in the hci_dev structure.

The Bluetooth 1.2 specification defines a new event for returning
inquiry results. This patch converts this event into the standard
event and add its information to the inquiry cache.

The command complete event of the inquiry cancel command must
clear the HCI_INQUIRY flag and finish the HCI request.

Cleanup unused HCI stuff.
Optimize HCI receive path.

typedefs for non opaque objects. This Changeset cleanups Bluetoth HCI
code and headers.

Some of them were named like BT_XXX and bt_xxx others BLUEZ_XXX and bluez_xxx.
From now on use BT_XXX and bt_xxx throughout Bluetooth code, including CONFIG_ defines.
Clean up small typos and misspelling along the way.

SMP locking fixes. 
Support for Hotplug.
Support for L2CAP connectionless channels (SOCK_DGRAM).
HCI filter handling fixes.
Other minor fixes and cleanups.

This updates 2.5.x Bluetooth subsystem and removes the EXPERIMENTAL
status of Bluetooth support.

         BlueZ Core:
                 New generic HCI connection manager.
                 Complete role switch and link policy support.
                 Security mode 1 and 3 support.
                 L2CAP service level security support.
                 HCI filter support.
                 HCI frame time-stamps.
                 SCO (voice links) support.
                 Improved HCI device unregistration (device destructors).
                 Support for L2CAP signalling frame fragmentation.
                 Improved L2CAP timeout handling.
                 New HCI ioctls for changing ACL and SCO MTU.
                 Killed HCI_MAX_DEV limit.
                 Security fixes.

         HCI USB driver:
                 Performance improvements.
                 Firmware loading support.
                 Stability fixes. URB and disconnect handling rewrite.

         HCI UART driver:
                 Support for multiple UART protocols.

         HCI PCMCIA driver:
                 Support for Nokia Bluetooth PC Cards.
                 Support for Anycom Bluetooth PC/CF Cards.