[Bluez-users] How to tell if EDR is used?

[Bluez-users] How to tell if EDR is used?

[Per Thomas Jahr]

Hi,

I'm doing file transfers from my computer to my phone, but I'm not sure
if it's using EDR or not. Is there some way I can find this out by using
f.ex. hcitool, hciconfig or some other tool during the file transfer? 

I use obexftp for the file transfer and both ends should support
Bluetooth 2 + EDR.

BTW: where do I find the explanation for the "Features" bytes?

My computer:

# hciconfig -a
hci0:   Type: USB
        BD Address: 00:02:XX:XX:XX:XX ACL MTU: 1017:8 SCO MTU: 64:0
        UP RUNNING PSCAN 
        RX bytes:246878 acl:12503 sco:0 events:6411 errors:0
        TX bytes:13069645 acl:25366 sco:0 commands:45 errors:0
        Features: 0xff 0xff 0x8d 0xfe 0x9b 0xf9 0x00 0x80
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
        Link policy: RSWITCH HOLD SNIFF PARK 
        Link mode: SLAVE ACCEPT 
        Name: 'delphi-0'
        Class: 0x120104
        Service Classes: Networking, Object Transfer
        Device Class: Computer, Desktop workstation
        HCI Ver: 2.0 (0x3) HCI Rev: 0x4000 LMP Ver: 2.0 (0x3) LMP Subver: 0x430e
        Manufacturer: Broadcom Corporation (15)


My phone (Sony Ericsson K800i):

# hcitool info 00:19:XX:XX:XX:XX
Requesting information ...
        BD Address:  00:19:XX:XX:XX:XX
        LMP Version: 2.0 (0x3) LMP Subversion: 0x520
        Manufacturer: ST Microelectronics (48)
        Features: 0xff 0xeb 0x8d 0xfe 0x9b 0xe9 0x00 0x00
                <3-slot packets> <5-slot packets> <encryption> <slot offset> 
                <timing accuracy> <role switch> <hold mode> <sniff mode> 
                <park state> <RSSI> <SCO link> <HV3 packets> <u-law log> 
                <A-law log> <CVSD> <power control> <transparent SCO> 
                <broadcast encrypt> <EDR ACL 2 Mbps> <EDR ACL 3 Mbps> 
                <enhanced iscan> <interlaced iscan> <interlaced pscan> 
                <inquiry with RSSI> <extended SCO> <EV4 packets> <EV5 packets> 
                <AFH cap. slave> <AFH class. slave> <3-slot EDR ACL> 
                <5-slot EDR ACL> <AFH cap. master> <EDR eSCO 2 Mbps> 
                <EDR eSCO 3 Mbps> <3-slot EDR eSCO> 



Thanks
Per Thomas


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Re: [Bluez-users] How to tell if EDR is used?

[Marcel Holtmann]

Hi Per Thomas,

> I'm doing file transfers from my computer to my phone, but I'm not sure
> if it's using EDR or not. Is there some way I can find this out by using
> f.ex. hcitool, hciconfig or some other tool during the file transfer? 

the EDR is activated by default. You actually have to manually
deactivate it.

> BTW: where do I find the explanation for the "Features" bytes?

>>From the Bluetooth specification.

Regards

Marcel



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Re: [Bluez-users] How to tell if EDR is used?

[Per Thomas Jahr]

On Wed, 2007-02-21 at 13:08 +0100, Marcel Holtmann wrote:
> Hi Per Thomas,
> 
> > I'm doing file transfers from my computer to my phone, but I'm not sure
> > if it's using EDR or not. Is there some way I can find this out by using
> > f.ex. hcitool, hciconfig or some other tool during the file transfer? 
> 
> the EDR is activated by default. You actually have to manually
> deactivate it.

OK. Then there is something else wrong - the transfer is very slow. Do
you have any hints or tips for how to debug the problem?

-- 
Per Thomas


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Re: [Bluez-users] How to tell if EDR is used?

[Marcel Holtmann]

Hi Per Thomas,

> > > I'm doing file transfers from my computer to my phone, but I'm not sure
> > > if it's using EDR or not. Is there some way I can find this out by using
> > > f.ex. hcitool, hciconfig or some other tool during the file transfer? 
> > 
> > the EDR is activated by default. You actually have to manually
> > deactivate it.
> 
> OK. Then there is something else wrong - the transfer is very slow. Do
> you have any hints or tips for how to debug the problem?

my guess is that it is the phone. It still needs a CPU that can handle
these data rates.

Regards

Marcel



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