Hi Marcel,
I wonder if adding a dynamic attach/detach to btattach could be a good idea.
Since most HCI UART drivers power on/off the Bluetooth controller on
proto/ldisc open/close.
It could be interesting to attach/detach the line discipline depending
Bluetooth usage.
A way to do that could be to track rfkill events via the /dev/rfkill device.
I can propose two solutions:
- btattach monitors a specific rfkill node whose index is a passed as
argument
and ldisc is attached/detached accordingly.
- An other solution could be to create a rfkill node from btattach so
that if
something blocks/unblocks the node, HCI ldisc is detached/attached
automatically.
Problem is that we can't create a rfkill node from user-space, but I
think we can
easily add this support to the rfkill device driver.
On my laptop, the Thinkpad acpi driver exports a rfkill nodes which
disconnects/reconnects
the USB embedded Bluetooth controller. This is what I would like to
reproduce for UART here.
Regards,
Loic
--
Intel Open Source Technology Center
http://oss.intel.com/
--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
