[Bluez-users] How does data flow from USB Core to the bluetooth protocol stack

[Bluez-users] How does data flow from USB Core to the bluetooth protocol stack

[Swathi Mathur80]

Hello,
I am a research student and i am trying to trace the
working of Bluez. 
I was able to find out how the communication between
the bluetooth USB adapter and host takes place. ie how
the bluetooth device driver gets loaded and how the
data collected in the bluetooth device driver is being
passed onto the actual USB driver. 
I was not able to find out how the USB core passes the
data which it collected from the bluetooth device
driver onto the bluetooth protocol stack. ie how the
kernel knows that this data belongs to bluez

I would appreciate if someone helps me with the above 

Warm Regards,
Swathi

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Re: [Bluez-users] How does data flow from USB Core to the bluetooth protocol stack

[Marcel Holtmann]

Hi Swathi,

> I am a research student and i am trying to trace the
> working of Bluez. 
> I was able to find out how the communication between
> the bluetooth USB adapter and host takes place. ie how
> the bluetooth device driver gets loaded and how the
> data collected in the bluetooth device driver is being
> passed onto the actual USB driver. 
> I was not able to find out how the USB core passes the
> data which it collected from the bluetooth device
> driver onto the bluetooth protocol stack. ie how the
> kernel knows that this data belongs to bluez

the hci_usb driver attaches to the USB core and the Bluetooth core and
deals with all these things. Start looking at the source code.

Regards

Marcel




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