the Bluetooth rc.d setup was simplified some time ago, so
'btdevctl' variable is no longer used. change wording to
reflect this

Merge riastradh-drm2 to HEAD.

Use Mt for email addresses.

branches: 1.9.2;
whitespace ' ' -> ' '

add a comment pointing out that the link-mode may need to be
changed manually, for devices which cannot authenticate

for PR/47286

branches: 1.7.6; 1.7.8; 1.7.12;
Sort sections, use serial comma.

add a reference in the SEE ALSO section to "The NetBSD Guide" for
detailed examples of device configuration

branches: 1.5.12;
Drop trailing whitespace, remove superfluous Pp.

branches: 1.4.4;
Add 'service level' security for L2CAP and RFCOMM connections, following
the Linux (BlueZ) API.

- L2CAP or RFCOMM connections can require the baseband radio link
mode be any of:
authenticated (devices are paired)
encrypted (implies authentication)
secured (encryption, plus generate new link key)

- for sockets, the mode is set using setsockopt(2) and the socket
connection will be aborted if the mode change fails.

- mode settings will be applied during connection establishment, and
for safety, we enter a wait state and will only proceed when the mode
settings are successfuly set.

- It is possible to change the mode on already open connections, but
not possible to guarantee that data already queued (from either end)
will not be delivered. (this is a feature, not a bug)

- bthidev(4) and rfcomm_sppd(1) support "auth", "encrypt" and
"secure" options

- btdevctl(8) by default enables "auth" for HIDs, and "encrypt" for
keyboards (which are required to support it)

branches: 1.3.2; 1.3.4;
update to bluetooth device attachment:

remove pseudo-device btdev(4) and inherent limitations

add bthub(4) which autoconfigures at bluetooth controllers as they
are enabled. bluetooth devices now attach here.

btdevctl(8) and its cache is updated to handle new semantics

etc/rc.d/btdevctl is updated to configure devices from a list
in /etc/bluetooth/btdevctl.conf

branches: 1.2.2;
BluetootH SCO Audio update.

Provide an ioctl to set the SCO mtu value in the controller and
place limits in the SCO code such that only packets of this size
may be sent.

Move the mtu option from btsco(4) and btdevctl(8), to the
btconfig(8) program.

Remove temporary BLUETOOTH_SCO kernel option, and enable SCO
socket access.

Fix incoming connection handling for btsco(4) and SCO sockets.

Fix documentation to reflect the new world order.

rename btcontrol(8) as btdevctl(8) to make it fit with the NetBSD naming
scheme for control programs. This fixes pr 34051.