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Re: Heads up: bluetoothd on-demand startup



On Fri, Jun 12, 2009 at 8:11 PM, Kyle McMartin<kyle mcmartin ca> wrote:
> On Fri, Jun 12, 2009 at 07:05:39PM +0100, Bastien Nocera wrote:
>> I've added a patch to bluetoothd in F-12 to support being started via
>> udev, on-demand. bluetoothd will now only start up when you have a
>> Bluetooth adapter plugged, and will exit 30 seconds after the last one
>> went away.
>>
>> The only purpose of the bluetooth initscript is now to switch HID proxy
>> adapters into Bluetooth mode (on Macs, and some Logitech and Dell
>> keyboard/mouse combos). That'll probably go away as well, and into udev.
>>
>> File bugs against bluez if you encounter any problems with bluetoothd
>> being in the wrong state (ie. started with no Bluetooth hardware, and
>> not running when you have Bluetooth hardware).
>>
>
> I've been hoping to find some time to do a big review of system startup
> for F-12, but haven't as yet found the time...
>
> How does this actually work? At what stage of boot does udev attempt to
> start bluetoothd?
>
> One of my ideas(I guess?) for F-12 is to filter modules loaded at boot
> by udev, and defer things that aren't needed for startup until either
> idle, or they are needed. (Why do we need sound modules loaded before we
> mount root rw? :) I've got a couple hacks from LPC last year I need to
> polish and submit for cups to make it somewhat more sensible...
>
> Pardon my curiosity, this is a big step towards better boot up. Thanks
> for doing this!
>
> cheers, Kyle

https://bugzilla.redhat.com/show_bug.cgi?id=484345


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