Linux forum


how to communicate with BLE adapters in l2cap with bluez

by LivingChang / December 29, 2012 12:25 PM PST


I have two CSR4.0 usb dongle and want to send l2cap packets from one to the other in the type of LE(low energy). What I can do now is using "hcitool leadv" to advertise the LE advertisement and using "hcitool lecc" to connect it. I can't find any APIs of l2cap to establish a connection between thses dongles. Is there any way to solve this problem?

Thank you.

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Clarification Request
I think you need to add more detail.
by R. Proffitt Forum moderator / December 29, 2012 3:01 PM PST

I looked at BLE on google and it was inconclusive. I'm only an author of an app that uses bluetooth so while I know a little your question does not lend itself to being researched.

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by LivingChang / December 29, 2012 3:55 PM PST

I have two CSR4.0 dongle :

~$ hciconfig
hci2: Type: BR/EDR Bus: USB
BD Address: 00:1A:7D:DA:71:09 ACL MTU: 310:10 SCO MTU: 64:8
RX bytes:1570 acl:3 sco:0 events:80 errors:0
TX bytes:1092 acl:3 sco:0 commands:52 errors:0

hci1: Type: BR/EDR Bus: USB
BD Address: 00:1A:7D:DA:71:07 ACL MTU: 310:10 SCO MTU: 64:8
RX bytes:1399 acl:3 sco:0 events:63 errors:0
TX bytes:1014 acl:3 sco:0 commands:42 errors:0

then I use "hciconfig hci1 leadv " and hci1 start to broadcast.
Now I can use "hcitool -hci2 lecc" to build a connection to hci1 and get a connction handle , but I can't establish a connection with "l2test -n -i hci2 00:1A:7D:DA:71:07" and get a connection reject response.
In the other hands. I can build a connection using BR/EDR mode with the tool "l2test"

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by R. Proffitt Forum moderator / December 30, 2012 7:32 AM PST
In reply to: detail

But you are not telling me enough. I would be guessing you are trying to build a PAN or a SPP link but since it's nothing I can decode yet, I think you take them back to their makers and work with them on a solution.

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