wrote: > > Hi Arpit, > > > [root@174-242 ~]# hciconfig hci0 version > > hci0: Type: USB > > BD Address: 00:10:60:B3:2C:F7 ACL MTU: 377:10 SCO MTU: 16:0 > > HCI Ver: 1.2 (0x2) HCI Rev: 0x0 LMP Ver: 1.2 (0x2) LMP Subver: > > 0x309 > > Manufacturer: Broadcom Corporation (15) > > these chips are Broadcom based. So you must ask them how they > implemented the link quality value. > > Check "hciconfig hci0 features" if they support "Inquiry with RSSI". > > > What is the HCI build version in this case?And how does this help me? > > The build id is only valid for CSR chips. It is not fully clear how > Broadcom encodes this. > > Regards > > Marcel > > > > > ------------------------------------------------------- > This SF.Net email is sponsored by the JBoss Inc. > Get Certified Today * Register for a JBoss Training Course > Free Certification Exam for All Training Attendees Through End of 2005 > Visit http://www.jboss.com/services/certification for more information > _______________________________________________ > Bluez-users mailing list > Bluez-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bluez-users > ------=_Part_7443_32346739.1130222112200 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

Hi Marcel

these chips are Broadc= om based. So you must ask them how they
implemented the link quality val= ue.

How is the implementation vendor specific?Does it mean that some vendo= rs don't support Link Quality?Or does it mean that there are other ways of = getting the LQ value?

Check "hciconfig hci0 features" if t= hey support "Inquiry with RSSI".
[root= @175-214 ~]# hciconfig hci0 features
hci0:   Type: USB
&nbs= p;       BD Address: 00:10:60:B3:2C:F7 ACL MT= U: 377:10 SCO MTU: 16:0
        Features: 0xff 0xfe 0x0d 0x3= 8 0x08 0x08 0x00 0x00
        &n= bsp;       <3-slot packets> <5-slot = packets> <encryption> <slot offset>
   &nb= sp;            <t= iming accuracy> <role switch> <hold mode> <sniff mode>
            = ;    <RSSI> <channel quality> <SCO link> &= lt;HV2 packets>
         = ;       <HV3 packets> <u-law log>= <A-law log> <CVSD> <power control>
   =              &l= t;transparent SCO> <enhanced iscan> <interlaced iscan>
            = ;    <interlaced pscan> <AFH cap. slave> <AFH= cap. master>

Well looks like it does support RSSI...but RSSI value= s change abruptly..for the same distance the RSSI might be -9 and the after= ten seconds its -2 so I can't use RSSI.

Do you suggest I try the LQ value with some other blu= etooth adaptors?Any idea as to which model would support the link quality f= eature?

Regards

Arpit

On 10/25/05, Marcel Holtmann <marcel@holt= mann.org> wrote:

Hi Arpit,

> [root@174-= 242 ~]# hciconfig hci0 version
> hci0:   Type: USB
>&= nbsp;       BD Address: 00:10:60:B3:2C:F= 7 ACL MTU: 377:10 SCO MTU: 16:0
>        HCI Ver: 1.2 (0x2) = HCI Rev: 0x0 LMP Ver: 1.2 (0x2) LMP Subver:
> 0x309
> &nbs= p;      Manufacturer: Broadcom Corporation (1= 5)

these chips are Broadcom based. So you must ask them how they
= implemented the link quality value.

Check "hciconfig hci0 features" if they support "Inq= uiry with RSSI".

> What is the HCI build version in this cas= e?And how does this help me?

The build id is only valid for CSR chip= s. It is not fully clear how
Broadcom encodes this.

Regards

Marcel

= -------------------------------------------------------
This SF.Net emai= l is sponsored by the JBoss Inc.
Get Certified Today * Register for a JB= oss Training Course
Free Certification Exam for All Training Attendees Through End of 2005<= br>Visit http://www= .jboss.com/services/certification for more information
_____________= __________________________________
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Bluez-users@lists.sourceforge.net
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