Hi José, José Antonio Santos Cadenas escribió: > Hi everybody, > > I am developing a free/open source implementation of HDP using sancane's MCAP > implementation. I am using ERTM and STREAMING mode provided by Gustavo's > patches from 3th October. I've been testing my implementation between two > computers (both of them using the previously mentioned profiles). This test > seems working correctly but I am also trying to test it against a Nonin Onix > II 9560BT PulseOximeter (certified by Continua). This device is using HDP but > when I try to test my HDP implementation I've observed that the MCAP control > channel L2CAP connection is not correctly opened (see trace bellow) > > ... >> HCI Event: Number of Completed Packets (0x13) plen 5 > handle 46 packets 1 >> ACL data: handle 46 flags 0x02 dlen 12 > L2CAP(s): Connect req: psm 49704 scid 0x0041 > < ACL data: handle 46 flags 0x02 dlen 16 > L2CAP(s): Connect rsp: dcid 0x0040 scid 0x0041 result 0 status 0 > Connection successful > .... > > There is a thread waiting for incoming connections on this psm, but it is > never waked up from the recv system call. > MCAP control channels are simply L2CAP socket with ERTM enabled. Current implementations waits in a recv call for incoming connections. When a device connect with you, the thread is waked up to create an MCAP Communications Link (MCL). Since here, all negotiations are established using MCAP commands. At a minimum, the l2cap connection should be opened before MCAP working thread will be waked up. I suspect that the problem is that the l2cap with ERMT connections is not opened. > ..... >> HCI Event: Number of Completed Packets (0x13) plen 5 > handle 46 packets 1 >> HCI Event: Link Key Request (0x17) plen 6 > bdaddr 00:1C:05:00:19:56 > < HCI Command: Link Key Request Reply (0x01|0x000b) plen 22 > bdaddr 00:1C:05:00:19:56 key DD4D176E23CDB1D95334CD8A7D077773 >> HCI Event: Command Complete (0x0e) plen 10 > Link Key Request Reply (0x01|0x000b) ncmd 1 > status 0x00 bdaddr 00:1C:05:00:19:56 >> HCI Event: Encrypt Change (0x08) plen 4 > status 0x00 handle 46 encrypt 0x01 > < HCI Command: Read RSSI (0x05|0x0005) plen 2 > handle 46 > .... > This part of the trace is repeated until local host closes L2CAP connection. > .... > > < ACL data: handle 46 flags 0x02 dlen 12 > L2CAP(s): Disconn req: dcid 0x0041 scid 0x0040 >> HCI Event: Number of Completed Packets (0x13) plen 5 > handle 46 packets 1 >> ACL data: handle 46 flags 0x02 dlen 12 > L2CAP(s): Disconn rsp: dcid 0x0041 scid 0x0040 > .... > >> HCI Event: Command Complete (0x0e) plen 7 > Read Transmit Power Level (0x03|0x002d) ncmd 1 > status 0x00 handle 46 level 3 > < HCI Command: Disconnect (0x01|0x0006) plen 3 > handle 46 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 46 reason 0x16 > Reason: Connection Terminated by Local Host > > > What am I doing wrong? Why the connection to this socket is not finished? > > If you are interested in the complete trace I can send it to you. > > > Thank you very much. > Regards. > > Jose. > -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
