* Re: [Bluez-users] why does one need bluez-firmware ?
[not found] <mailman.247983.1166465173.8777.bluez-users@lists.sourceforge.net>
@ 2006-12-18 19:35 ` Steve " 'dillo " Okay (Roadknight Labs)
2006-12-19 9:43 ` Marcel Holtmann
0 siblings, 1 reply; 6+ messages in thread
From: Steve " 'dillo " Okay (Roadknight Labs) @ 2006-12-18 19:35 UTC (permalink / raw)
To: bluez-users
On Dec 18, 2006, at 10:06 , bluez-users-request@lists.sourceforge.net
wrote:
> On Sun, Dec 17, 2006 at 01:15:30PM +0100, Marcel Holtmann wrote:
>> Hi,
>>
>>> I read on some web pages that one need bluez-firmware to be able to
>>> operate the BroadCom 203x series bluetooth dongle correctly on a 2.4
>>> kernel. So I am wondering what is the purpose of bluez-firmware? And
>>> how does it work?
>>
>> that is a misunderstanding. For the 2.6 kernel you use a kernel
>> module
>> to load the firmware. For 2.4 an extra USB application was needed.
>> Both
>> however need the firmware files.
>
> And what is the purpose of bluez-firmware? How does it work?
The USB dongles themselves are stupid and don't have operational
firmware in them.
It's a cost-saving measure. By using uploadable firmware, the
manufacturer (Dlink, Linksys, whoever)
doesn't have to make a Windows version and a Mac version and a Linux
version.
They just make one type of device and then ship the appropriate
firmware blob on the drivers CD.
So the real reason you need the BlueZ firmware is that the driver has
to upload the right firmware(in this case, for Linux) into the
bluetooth module itself, otherwise it won't work.
HTH,
-----Steve
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [Bluez-users] why does one need bluez-firmware ?
2006-12-18 19:35 ` [Bluez-users] why does one need bluez-firmware ? Steve " 'dillo " Okay (Roadknight Labs)
@ 2006-12-19 9:43 ` Marcel Holtmann
0 siblings, 0 replies; 6+ messages in thread
From: Marcel Holtmann @ 2006-12-19 9:43 UTC (permalink / raw)
To: BlueZ users
Hi Steve,
> >>> I read on some web pages that one need bluez-firmware to be able to
> >>> operate the BroadCom 203x series bluetooth dongle correctly on a 2.4
> >>> kernel. So I am wondering what is the purpose of bluez-firmware? And
> >>> how does it work?
> >>
> >> that is a misunderstanding. For the 2.6 kernel you use a kernel
> >> module
> >> to load the firmware. For 2.4 an extra USB application was needed.
> >> Both
> >> however need the firmware files.
> >
> > And what is the purpose of bluez-firmware? How does it work?
>
> The USB dongles themselves are stupid and don't have operational
> firmware in them.
most of them actually do have the firmware in flash or RAM. Only a few
need a firmware download before they can be used.
> It's a cost-saving measure. By using uploadable firmware, the
> manufacturer (Dlink, Linksys, whoever)
> doesn't have to make a Windows version and a Mac version and a Linux
> version.
> They just make one type of device and then ship the appropriate
> firmware blob on the drivers CD.
This is a generalization from the WiFi world and it is simply not true.
Only a minor number of devices need a firmware download.
> So the real reason you need the BlueZ firmware is that the driver has
> to upload the right firmware(in this case, for Linux) into the
> bluetooth module itself, otherwise it won't work.
Just to make it clear. You are talking about a firmware download. You
download firmware to the device. An upload would mean to extract the
firmware from the device.
Regards
Marcel
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bluez-users] why does one need bluez-firmware ?
@ 2006-12-17 2:20 amateur
2006-12-17 12:15 ` Marcel Holtmann
0 siblings, 1 reply; 6+ messages in thread
From: amateur @ 2006-12-17 2:20 UTC (permalink / raw)
To: bluez-users
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Bluez-users] why does one need bluez-firmware ?
2006-12-17 2:20 amateur
@ 2006-12-17 12:15 ` Marcel Holtmann
2006-12-18 10:47 ` amateur
0 siblings, 1 reply; 6+ messages in thread
From: Marcel Holtmann @ 2006-12-17 12:15 UTC (permalink / raw)
To: amateur, BlueZ users
Hi,
> I read on some web pages that one need bluez-firmware to be able to
> operate the BroadCom 203x series bluetooth dongle correctly on a 2.4
> kernel. So I am wondering what is the purpose of bluez-firmware? And
> how does it work?
that is a misunderstanding. For the 2.6 kernel you use a kernel module
to load the firmware. For 2.4 an extra USB application was needed. Both
however need the firmware files.
Regards
Marcel
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Bluez-users] why does one need bluez-firmware ?
2006-12-17 12:15 ` Marcel Holtmann
@ 2006-12-18 10:47 ` amateur
2006-12-18 11:55 ` Marcel Holtmann
0 siblings, 1 reply; 6+ messages in thread
From: amateur @ 2006-12-18 10:47 UTC (permalink / raw)
To: BlueZ users
On Sun, Dec 17, 2006 at 01:15:30PM +0100, Marcel Holtmann wrote:
> Hi,
>
> > I read on some web pages that one need bluez-firmware to be able to
> > operate the BroadCom 203x series bluetooth dongle correctly on a 2.4
> > kernel. So I am wondering what is the purpose of bluez-firmware? And
> > how does it work?
>
> that is a misunderstanding. For the 2.6 kernel you use a kernel module
> to load the firmware. For 2.4 an extra USB application was needed. Both
> however need the firmware files.
And what is the purpose of bluez-firmware? How does it work?
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Bluez-users] why does one need bluez-firmware ?
2006-12-18 10:47 ` amateur
@ 2006-12-18 11:55 ` Marcel Holtmann
0 siblings, 0 replies; 6+ messages in thread
From: Marcel Holtmann @ 2006-12-18 11:55 UTC (permalink / raw)
To: amateur, BlueZ users
Hi,
> > > I read on some web pages that one need bluez-firmware to be able to
> > > operate the BroadCom 203x series bluetooth dongle correctly on a 2.4
> > > kernel. So I am wondering what is the purpose of bluez-firmware? And
> > > how does it work?
> >
> > that is a misunderstanding. For the 2.6 kernel you use a kernel module
> > to load the firmware. For 2.4 an extra USB application was needed. Both
> > however need the firmware files.
>
> And what is the purpose of bluez-firmware? How does it work?
this package only contains the binary firmware blobs. Nothing more.
Regards
Marcel
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^ permalink raw reply [flat|nested] 6+ messages in thread
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[not found] <mailman.247983.1166465173.8777.bluez-users@lists.sourceforge.net>
2006-12-18 19:35 ` [Bluez-users] why does one need bluez-firmware ? Steve " 'dillo " Okay (Roadknight Labs)
2006-12-19 9:43 ` Marcel Holtmann
2006-12-17 2:20 amateur
2006-12-17 12:15 ` Marcel Holtmann
2006-12-18 10:47 ` amateur
2006-12-18 11:55 ` Marcel Holtmann
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