Re: [Bluez-devel] /sys/devices/platform/bluetooth

["Choi Sonim" <choisonim@gmail.com>]

Hi Marcel,

On 1/19/07, Marcel Holtmann <marcel@holtmann.org> wrote:
> Hi Choi,
>
> > > > Where is the code that does the platform registration to this device :
> > > > /sys/devices/platform/bluetooth
> > >
> > > you find it in net/bluetooth/hci_sysfs.c in the kernel source code.
> >
> > What is the purpose of the bluetooth platform device (and bus and class..) ?
> >
> > I guess that bluetooth devices would prefer to register themselves as children
> > of their true bus (like USB or PCI or even serial) so when the system goes
> > to suspend, their suspend function will be called before their father's
> > (the true hardware bus of our bluetooth device).
>
> if they do have a physical parent. Some devices like virtual HCI or
> serial based chips don't have a physical parent.

About the serial based chips -
I'm sure they would like their suspend function to be called before the
serial uart driver's suspend, so for them to set device parent to the
serial device
can be a benefit too, no ?

About the virtual HCI - I really don't know what are them, can you please
explain this ?

Thank You Very very Much !
Choi.
>
> Regards
>
> Marcel
>
>
>