2012-10-18 08:26:08

by Kevin Wilson

Subject: a short question: what are BREDR and AMP?

Hi,
I see that the device type of hci_dev can be HCI_BREDR or HCI_AMP.
(hci_register_dev() in net/bluetooth/hci_core.c).

I have a question if I may: what are these two types?

rgs,
Kevin

2012-10-18 09:05:51

by Kevin Wilson

Subject: Re: a short question: what are BREDR and AMP?

Hi,
Thanks for your quick response, it sure explains it!
rgs
Kevin

On Thu, Oct 18, 2012 at 10:59 AM, Anand Anand <[email protected]> wrote:
> Hi Kevin,
>
> In short :-
>
> BREDR would stand for basic rate enhanced data rate controllers and
> AMP would stand for Alternate MAC/PHY(AMP) controllers.
>
> Kindly go through the specification document-
> BLUETOOTH SPECIFICATION Version 4.0 for better understanding.
>
> Some excerpts from the spec say :-
>
> Core has two components :-
> a)Host
> b)Controllers
>
> "An implementation of the Bluetooth Core has only one Primary Controller
> which may be one of the following configurations:
> ? BR/EDR Controller including the Radio, Baseband, Link Manager and
> optionally HCI.
> ? an LE Controller including the LE PHY, Link Layer and optionally HCI.
> ? a combined BR/EDR Controller portion and LE controller portion (as identified
> in the previous two bullets) into a single Controller. This configuration
> has only one Bluetooth device address shared by the combination in the
> combined Controller.
> A Bluetooth core system may additionally have one or more Secondary Controllers
> described by the following configuration:
> ? an Alternate MAC/PHY (AMP) Controller including an 802.11 PAL (Protocol
> Adaptation Layer), 802.11 MAC and PHY, and optionally HCI
> "
> quoted from Bluetooth core documentation.
>
> Hope it helped.
> Regards,
> Anand
>
> On Thu, Oct 18, 2012 at 1:56 PM, Kevin Wilson <[email protected]> wrote:
>> Hi,
>> I see that the device type of hci_dev can be HCI_BREDR or HCI_AMP.
>> (hci_register_dev() in net/bluetooth/hci_core.c).
>>
>> I have a question if I may: what are these two types?
>>
>> rgs,
>> Kevin
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
>> the body of a message to [email protected]
>> More majordomo info at http://vger.kernel.org/majordomo-info.html

2012-10-18 08:59:29

by Anand Anand

Subject: Re: a short question: what are BREDR and AMP?

Hi Kevin,

In short :-

BREDR would stand for basic rate enhanced data rate controllers and
AMP would stand for Alternate MAC/PHY(AMP) controllers.

Kindly go through the specification document-
BLUETOOTH SPECIFICATION Version 4.0 for better understanding.

Some excerpts from the spec say :-

Core has two components :-
a)Host
b)Controllers

"An implementation of the Bluetooth Core has only one Primary Controller
which may be one of the following configurations:
? BR/EDR Controller including the Radio, Baseband, Link Manager and
optionally HCI.
? an LE Controller including the LE PHY, Link Layer and optionally HCI.
? a combined BR/EDR Controller portion and LE controller portion (as identified
in the previous two bullets) into a single Controller. This configuration
has only one Bluetooth device address shared by the combination in the
combined Controller.
A Bluetooth core system may additionally have one or more Secondary Controllers
described by the following configuration:
? an Alternate MAC/PHY (AMP) Controller including an 802.11 PAL (Protocol
Adaptation Layer), 802.11 MAC and PHY, and optionally HCI
"
quoted from Bluetooth core documentation.

Hope it helped.
Regards,
Anand

On Thu, Oct 18, 2012 at 1:56 PM, Kevin Wilson <[email protected]> wrote:
> Hi,
> I see that the device type of hci_dev can be HCI_BREDR or HCI_AMP.
> (hci_register_dev() in net/bluetooth/hci_core.c).
>
> I have a question if I may: what are these two types?
>
> rgs,
> Kevin
> --
> To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html