Re: [Bluez-users] Microsoft Optical Desktop for Bluetooth - Help!

[JoKo <jokogr@gmail.com>]

Marcel Holtmann wrote:

>Hi,
>
>  
>
>>I've recently bought a new PC which came with Microsoft Optical Desktop
>>for Bluetooth set. During setup (both Windows and Linux) I've used a
>>normal PS/2 keyboard and everything went OK. The installation of the
>>bluetooth devices in Windows was also OK.
>>
>>But with Linux, I came up with lots of problems. By trial and error, I
>>have managed to use it, but I still have problems. The mouse has no
>>problems at all, since no PIN is used for it, but for the bluetooth
>>keyboard I had to setup a PIN (using the default pin-helper) which has
>>to be the same with the one in Windows.
>>
>>Although it works for a while, if you don't press any buttons for some
>>time, the connection between keyboard and PC is lost.In addition to
>>that, when I exit from Linux, the connection is most of times also lost,
>>so I cannot control the boot loader or the BIOS and even worse, I have
>>to go into Windows to re-install the keyboard so that I can finally use it.
>>
>>Thanks god the mouse always works and therefore, I don't have to connect
>>a PS/2 keyboard every time I use Linux.
>>    
>>
>
>use a HID proxy dongle (CSR or Broadcom) and write the link key for the
>keyboard to the Bluetooth chip itself. See the mailing list archive for
>some details, because such a question was raised before.
>
>Regards
>
>Marcel
>
>
>
>
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>  
>
Hi again,

Thanks for your fast reply and I'm feeling sorry for asking the same 
question again, but a search in the mailing list archive wasn't very 
helpful. A HID proxy dongle is a dongle which saves all the required 
info so that my device (keyboard, mouse) could be used during booting as 
a USB device, right? If so, after installing the keyboard device in 
Windows, my keyboard works during booting (I can go into the BIOS menu, 
choose an OS with the boot loader etc.) even after I shut down my PC.

So, I suppose, the Microsoft USB dongle supports HID proxy. After all, 
your list (http://www.holtmann.org/linux/bluetooth/features.html) 
indicates that the bluetooth chip Microsoft uses could be either CSR or 
Broadcom. If I'm right, my next question is how to write the link key to 
the bluetooth chip.

Although I've searched through the mailing list, I couldn't find any 
explanatory note about it. The only thing I found was something about 
tranferring the link key between Windows and Linux, but I suppose this 
has to do with the operating systems only (and in both of them I use the 
same pin number) and not with the firmware itself.

Anyway, a full guide would be very helpful...


Thanks again for your help


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