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From: Jesse Guardiani <jesse@wingnet.net>
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Subject: [Bluez-users] bluetooth 1.2 - how do I know it's working?
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Date: Wed, 13 Apr 2005 10:52:21 -0400

Hello,

I just bought a D-Link DBT 120 rev B3 from ebay and flashed
it with the latest Apple dfu firmware using btdfu. (Thanks
for the advice, Marcel!)

Before the firmware upgrade, it talked to my Logitech Mobile
Freedom headset fine (Logitech HS02-V07) using btsco, but
the connection cracked and popped a lot. I run an 802.11b
network, so I figured the BT 1.1 might be getting interference
from the 802.11b net, thus causing the sound artifacts.

After the successful upgrade, it sounds a little better, I
think, but how do I make sure that the USB adapter AND the
headset are using BT 1.2's AFH features?

Here's my adapter:

hci0:   Type: USB
        BD Address: 00:0D:88:93:FC:3E ACL MTU: 192:8  SCO MTU: 64:8
        UP RUNNING PSCAN ISCAN
        RX bytes:576034 acl:30 sco:11266 events:88 errors:0
        TX bytes:569989 acl:26 sco:11157 commands:40 errors:0
        Features: 0xff 0xff 0x8f 0x78 0x18 0x18 0x00 0x80
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
        Link policy: RSWITCH HOLD SNIFF PARK
        Link mode: SLAVE ACCEPT
        Name: 'BlueZ (0)'
        Class: 0xff0100
        Service Classes: Positioning, Networking, Rendering, Capturing, Object Transfer, Audio, Telephony, Information
        Device Class: Computer, Uncategorized
        HCI Ver: 1.2 (0x2) HCI Rev: 0x632 LMP Ver: 1.2 (0x2) LMP Subver: 0x632
        Manufacturer: Cambridge Silicon Radio (10)

And here's my Mobile Freedom Headset:

# hcitool info 00:0D:44:36:E6:F4
Requesting information ...
        BD Address:  00:0D:44:36:E6:F4
        Device Name: Logitech HS02-V07
        LMP Version: 1.2 (0x2) LMP Subversion: 0x611
        Manufacturer: Cambridge Silicon Radio (10)
        Features: 0xfc 0xfe 0x0f 0x00 0x08 0x08 0x00 0x00
                <encryption> <slot offset> <timing accuracy> <role switch>
                <hold mode> <sniff mode> <RSSI> <channel quality> <SCO link>
                <HV2 packets> <HV3 packets> <u-law log> <A-law log> <CVSD>
                <paging scheme> <power control> <transparent SCO>
                <AFH cap. slave> <AFH cap. master>

# hcitool afh 00:0D:44:36:E6:F4
AFH map: 0xffffffffffffffffff7f

Does this indicate that both devices are using AFH correctly?

-- 
Jesse Guardiani, Systems Administrator
WingNET Internet Services,
P.O. Box 2605 // Cleveland, TN 37320-2605
423-559-LINK (v)  423-559-5145 (f)
http://www.wingnet.net





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