Hi All,
Was having a bit of a look online for a BT2 dongle of some
description. Does anyone know of a bt2 dongle that works well with the
bluez stack that's readily available? Or aren't they really out yet?
Pete
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Hi Michael,
> I have upgraded to 2.6.11. Now getsockopt() works ok, but I can't call
> hci_read_rssi() without errors! It still says protocol not available.Is
> there another way to read the RSSI from RFCOMM?
the device descriptor for hci_read_rssi() comes from hci_open_dev().
Regards
Marcel
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Marcel Holtmann wrote:
>Hi Michael,
>
>
>
>>>>Thanks for that. I think I have code that will work now. This is the
>>>>line that I pass to the hci_read_rssi() method:
>>>>hci_read_rssi(client_sock, htobs(rfconn.hci_handle), &rssi, 25000)
>>>>
>>>>My app doesn't have fancy error messages so I spent ages trying to work
>>>>out why it doesnt work, no luck, but rctest gives the error "Can't get
>>>>RFCOMM connection information: Protocol not available (92)"
>>>>
>>>>Do you know what can cause this error, or give me a head start on how to
>>>>track it down?
>>>>
>>>>Im using a complete install of fedora core 3
>>>>
>>>>
>>>maybe your kernel is too old. I added that feature to RFCOMM very late.
>>>
>>>
>>>
>>What version do I need to use this feature??
>>
>>I'm using version 2.6.9-1.667
>>
>>
>
>the first kernel would be 2.6.11 or 2.6.10-mh4.
>
>Regards
>
>Marcel
>
I have upgraded to 2.6.11. Now getsockopt() works ok, but I can't call
hci_read_rssi() without errors! It still says protocol not available.Is
there another way to read the RSSI from RFCOMM?
If anyone is interested in looking over my code - please let me know.
Any help is greatly appreciated..
Thank you
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Hi Michael,
> >>Thanks for that. I think I have code that will work now. This is the
> >>line that I pass to the hci_read_rssi() method:
> >>hci_read_rssi(client_sock, htobs(rfconn.hci_handle), &rssi, 25000)
> >>
> >>My app doesn't have fancy error messages so I spent ages trying to work
> >>out why it doesnt work, no luck, but rctest gives the error "Can't get
> >>RFCOMM connection information: Protocol not available (92)"
> >>
> >>Do you know what can cause this error, or give me a head start on how to
> >>track it down?
> >>
> >>Im using a complete install of fedora core 3
> >
> >maybe your kernel is too old. I added that feature to RFCOMM very late.
> >
> What version do I need to use this feature??
>
> I'm using version 2.6.9-1.667
the first kernel would be 2.6.11 or 2.6.10-mh4.
Regards
Marcel
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Marcel Holtmann wrote:
>Hi Michael,
>
>
>
>>Thanks for that. I think I have code that will work now. This is the
>>line that I pass to the hci_read_rssi() method:
>>hci_read_rssi(client_sock, htobs(rfconn.hci_handle), &rssi, 25000)
>>
>>My app doesn't have fancy error messages so I spent ages trying to work
>>out why it doesnt work, no luck, but rctest gives the error "Can't get
>>RFCOMM connection information: Protocol not available (92)"
>>
>>Do you know what can cause this error, or give me a head start on how to
>>track it down?
>>
>>Im using a complete install of fedora core 3
>>
>>
>
>maybe your kernel is too old. I added that feature to RFCOMM very late.
>
>Regards
>
>Marcel
>
>
>
>
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>
>
>
What version do I need to use this feature??
I'm using version 2.6.9-1.667
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Hi Michael,
> Thanks for that. I think I have code that will work now. This is the
> line that I pass to the hci_read_rssi() method:
> hci_read_rssi(client_sock, htobs(rfconn.hci_handle), &rssi, 25000)
>
> My app doesn't have fancy error messages so I spent ages trying to work
> out why it doesnt work, no luck, but rctest gives the error "Can't get
> RFCOMM connection information: Protocol not available (92)"
>
> Do you know what can cause this error, or give me a head start on how to
> track it down?
>
> Im using a complete install of fedora core 3
maybe your kernel is too old. I added that feature to RFCOMM very late.
Regards
Marcel
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Thanks for that. I think I have code that will work now. This is the
line that I pass to the hci_read_rssi() method:
hci_read_rssi(client_sock, htobs(rfconn.hci_handle), &rssi, 25000)
My app doesn't have fancy error messages so I spent ages trying to work
out why it doesnt work, no luck, but rctest gives the error "Can't get
RFCOMM connection information: Protocol not available (92)"
Do you know what can cause this error, or give me a head start on how to
track it down?
Im using a complete install of fedora core 3
Thank you
-michael
Marcel Holtmann wrote:
>Hi Michael,
>
>
>
>>I'm using pretty standard sockets to create a bluetooth connection. I
>>can communicate fine with my J2ME app however I was wondering if it is
>>at all possible to read the RSSI from an RFCOMM layer connection. I can
>>read it fine if I make a lower level connection, but this is not at all
>>suited to my application..
>>
>>So, how can I read the RSSI when I dont have access to all the data I
>>need to pass to the hci_read_rssi() method??
>>
>>
>
>you only need the ACL connection handle and you can get this with a
>getsockopt() call through RFCOMM. Check rctest for an example.
>
>Regards
>
>Marcel
>
>
>
>
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Hi Michael,
> I'm using pretty standard sockets to create a bluetooth connection. I
> can communicate fine with my J2ME app however I was wondering if it is
> at all possible to read the RSSI from an RFCOMM layer connection. I can
> read it fine if I make a lower level connection, but this is not at all
> suited to my application..
>
> So, how can I read the RSSI when I dont have access to all the data I
> need to pass to the hci_read_rssi() method??
you only need the ACL connection handle and you can get this with a
getsockopt() call through RFCOMM. Check rctest for an example.
Regards
Marcel
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I'm using pretty standard sockets to create a bluetooth connection. I
can communicate fine with my J2ME app however I was wondering if it is
at all possible to read the RSSI from an RFCOMM layer connection. I can
read it fine if I make a lower level connection, but this is not at all
suited to my application..
So, how can I read the RSSI when I dont have access to all the data I
need to pass to the hci_read_rssi() method??
Thanks.
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Hi Pete,
> > > Was having a bit of a look online for a BT2 dongle of some
> > > description. Does anyone know of a bt2 dongle that works well with the
> > > bluez stack that's readily available? Or aren't they really out yet?
> >
> > do you mean Bluetooth 2.0 + EDR? No dongle that I know of is available.
> > You can only order Dell or Apple notebooks with CSR BlueCore4 chips.
>
> Yes. I knew about the apple, although not of the Dell. I'm looking to
> get a bluetooth dongle and thought seeing as the 2 standard was out
> that I should probably get the latest and greatest but it seems its
> not quite there yet. Any idea when we should start seeing the newer
> ones and is it supported by bluez?
no one has announced an EDR dongle so far. And yes, it is fully
supported by BlueZ.
Regards
Marcel
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Hi Marcel,
> > Was having a bit of a look online for a BT2 dongle of some
> > description. Does anyone know of a bt2 dongle that works well with the
> > bluez stack that's readily available? Or aren't they really out yet?
>=20
> do you mean Bluetooth 2.0 + EDR? No dongle that I know of is available.
> You can only order Dell or Apple notebooks with CSR BlueCore4 chips.
Yes. I knew about the apple, although not of the Dell. I'm looking to
get a bluetooth dongle and thought seeing as the 2 standard was out
that I should probably get the latest and greatest but it seems its
not quite there yet. Any idea when we should start seeing the newer
ones and is it supported by bluez?
Pete
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Hi Pete,
> Was having a bit of a look online for a BT2 dongle of some
> description. Does anyone know of a bt2 dongle that works well with the
> bluez stack that's readily available? Or aren't they really out yet?
do you mean Bluetooth 2.0 + EDR? No dongle that I know of is available.
You can only order Dell or Apple notebooks with CSR BlueCore4 chips.
Regards
Marcel
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