SDK7.1 keypad connect ubunt14.4 success!

[Sr Huang]

I try to use SDK8.1.1 example connect ubuntu14.4 with CSR dongle. Seems it create connection fail. I downgrade to SDK7.1, it connection pair correctly. But it'll terminate connection once finish pair.

Here is hcidump

HCI Event: Number of Completed Packets (0x13) plen 5 handle 63 packets 1 ACL data: handle 63 flags 0x02 dlen 10 ATT: Read By Type resp (0x09) length: 4 handle 0x0005, value 0xc1 0x03 < HCI Command: Disconnect (0x01|0x0006) plen 3 handle 63 reason 0x13 Reason: Remote User Terminated Connection HCI Event: Command Status (0x0f) plen 4 Disconnect (0x01|0x0006) status 0x00 ncmd 1 HCI Event: Disconn Complete (0x05) plen 4 status 0x00 handle 63 reason 0x16 Reason: Connection Terminated by Local Host

WireShark have same result. It also indicate Host terminate connect reason 0x13.

[Stian Røed Hafskjold]

Yes, I'm able to reproduce the error. Seems like a bug. I'm investigating it now

[Stian Røed Hafskjold]

I've edited the question

[Sr Huang]

I agree with your explaination. Press a lot trigger a long press, then disconnect. But I need to notice here: if device disconnect, host can't reconnect correctlly on Ubuntu & Android. We expect: host pair ok, connect ok. HID function ok. Device disconnect. Host reconnect ok. Then HID function ok. Real : host pair ok, connect ok. HID function ok.Device disconnect. Host reconnect ok. Then HID function fail.

I can easily reproduce this bug on SDK 8.1 & 9.0. Sounds like if no pair ok before connect, there is problem.

[Stian Røed Hafskjold]

Are you able to try this on an Android phone, or a win 8.1 PC? Then we could maybe narrow the issue down to a Linux or CSR dongle problem. I will continue to try with different BLE dongles on my Linux setup.

[Sr Huang]

Sure Stian, I try it on Android phone 4.4 also. Phone BT is onboard chip. So problem narrow down to BLE device side. Not CSR dongle problem, not bluez problem.