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Bluetooth: make LE-only devices add "LE:" as an address prefix

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This seems a bit odd, but it actually has three different reasons for it:

 - It's a visual indication of BT LE mode for users

 - the rfcomm code only works with legacy BT support, and if we scan a
   device that only does LE, we want the custom serial code to instead
   automatically fall back on a "emulate serial over LE packets" model.

 - we want rfcomm to remain the default for devices that do both legacy
   BT _and_ LE, but we want people to have the ability to override the
   choice manually.  They can now do so by just editing the address
   field and adding the "LE:" prefix manually, and it automatically gets
   saved for next time.

So while a bit hacky, it's actually a very convenient model that not
only works automatically, but allows the manual override.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Linus Torvalds 2017-06-26 18:17:06 -07:00 • committed by Dirk Hohndel
parent bbde0a1741
commit d0c3ef4cf8
2 changed files with 18 additions and 1 deletions
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9
desktop-widgets/btdeviceselectiondialog.cpp
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@ -420,7 +420,14 @@ void BtDeviceSelectionDialog::deviceDiscoveryError(QBluetoothDeviceDiscoveryAgen
QString BtDeviceSelectionDialog::getSelectedDeviceAddress()
{
if (selectedRemoteDeviceInfo) {
return selectedRemoteDeviceInfo.data()->address().toString();
QBluetoothDeviceInfo *deviceInfo = selectedRemoteDeviceInfo.data();
QBluetoothDeviceInfo::CoreConfigurations flags;
QString prefix = "";
flags = deviceInfo->coreConfigurations();
if (flags == QBluetoothDeviceInfo::LowEnergyCoreConfiguration)
prefix = "LE:";
return prefix + deviceInfo->address().toString();
}
return QString();