[Bluez-devel] Send packets using scotest over bluetooth

[Bluez-devel] Send packets using scotest over bluetooth

[Ivy]

Hi,

       I have two bluetooth tongles with Linux machines. I am trying to send voice over bluetooth.  For test purpose, i m using scotest program. SCO test program generates some packets with 0x7F (except First 6 Bytes). scotest program connect with another PC,authunicated successfully and starts sending data . between  i ma running hcidump -XR in the sending machine. But i am not seeing any data like going out ... But another system receiving completly 0xFF ..  MY dongle info. 

          my kernel version is 2.6.9-1.667 (FC3). anotherend 2.6.12-4. i have loaded sco modules and bluetooth service also running...

[root@ivy ~]# hciconfig hci0 version version
hci0:   Type: USB
        BD Address: 00:0B:0D:04:30:86 ACL MTU: 120:20 SCO MTU: 64:0
        HCI Ver: 1.2 (0x2) HCI Rev: 0x0 LMP Ver: 1.2 (0x2) LMP Subver: 0x757
        Manufacturer: Silicon Wave (11)
        HCI Ver: 1.2 (0x2) HCI Rev: 0x0 LMP Ver: 1.2 (0x2) LMP Subver: 0x757
        Manufacturer: Silicon Wave (11)

[root@ivy ~]# hciconfig hci0 features
hci0:   Type: USB
        BD Address: 00:0B:0D:04:30:86 ACL MTU: 120:20 SCO MTU: 64:0
        Features: 0xff 0xff 0x05 0x38 0x18 0x18 0x00 0x00
                <3-slot packets> <5-slot packets> <encryption> <slot offset>
                <timing accuracy> <role switch> <hold mode> <sniff mode>
                <park state> <RSSI> <channel quality> <SCO link> <HV2 packets>
                <HV3 packets> <u-law log> <A-law log> <CVSD> <power control>
                <enhanced iscan> <interlaced iscan> <interlaced pscan>
                <AFH cap. slave> <AFH class. slave> <AFH cap. master>
                <AFH class. master>


Anytips to debug ...

Ivy
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Re: [Bluez-devel] Send packets using scotest over bluetooth

[Marcel Holtmann]

Hi Ivy,

don't do cross-posting.

>        I have two bluetooth tongles with Linux machines. I am trying to send voice over bluetooth.  For test purpose, i m using scotest program. SCO test program generates some packets with 0x7F (except First 6 Bytes). scotest program connect with another PC,authunicated successfully and starts sending data . between  i ma running hcidump -XR in the sending machine. But i am not seeing any data like going out ... But another system receiving completly 0xFF ..  MY dongle info. 

the SCO data send on one side must not be the same as received on the
other side. There is a CVSD codec in between.

Regards

Marcel




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SF.Net email is Sponsored by the Better Software Conference & EXPO
September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices
Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA
Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf
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