Implement asynchronous RFCOMM channel discovery on Linux. (dm)


git-svn-id: svn://mielke.cc/main/brltty@7711 91a5dbb7-01b9-0310-9b5f-b28072856b6e
Implement asynchronous Bluetooth device name querying on Linux. (dm)


git-svn-id: svn://mielke.cc/main/brltty@7712 91a5dbb7-01b9-0310-9b5f-b28072856b6e