Return-Path: From: Catalin Drula To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Subject: [Bluez-devel] hci_cmd_task: hci0 command tx timeout Sender: bluez-devel-admin@lists.sourceforge.net Errors-To: bluez-devel-admin@lists.sourceforge.net Reply-To: bluez-devel@lists.sourceforge.net List-Unsubscribe: , List-Id: BlueZ development List-Post: List-Help: List-Subscribe: , List-Archive: Date: Tue, 15 Feb 2005 15:19:21 +0100 (CET) Hi, While using a COM One Bluetooth USB dongle, after a random amount of time, the device becomes unresponsive (no HCI commands are accepted). The only solution is to physically remove the dongle and re-insert it. The system is Fedora Core 3, kernel version 2.6.10-1.741_FC3. These are the relevant messages from /var/log/messages: Feb 15 14:20:22 corse kernel: usb 2-2: new full speed USB device using uhci_hcd and address 7 Feb 15 14:22:02 corse kernel: hci_cmd_task: hci0 command tx timeout Also, here is the output of hcidump -i hci0 -x before the crash occurs: > HCI Event: Connect Complete (0x03) plen 11 00 28 00 3E 17 39 EE 02 00 01 00 < ACL data: handle 0x0028 flags 0x02 dlen 12 L2CAP(s): Connect req: psm 4097 scid 0x0041 < ACL data: handle 0x0028 flags 0x02 dlen 12 L2CAP(s): Connect req: psm 4097 scid 0x0040 < HCI Command: Inquiry Cancel (0x01|0x0002) plen 0 < HCI Command: Disconnect (0x01|0x0006) plen 3 28 00 13 < HCI Command: Write Scan Enable (0x03|0x001a) plen 1 00 As you can see the last three commands get no answers. Here's (the relevant parts of) the output of lsmod: Module Size Used by dtl1_cs 11845 3 l2cap 26053 3 pcmcia 20805 5 dtl1_cs dm_mod 55509 0 ac 4805 0 joydev 9217 0 hci_usb 15041 3 bluetooth 48069 7 dtl1_cs,l2cap,hci_usb yenta_socket 19137 1 pcmcia_core 50817 3 dtl1_cs,pcmcia,yenta_socket uhci_hcd 31321 0 hw_random 5717 0 I have read that this behavior might be caused by the loss of syncronization between the host and the device. Is there any way to fix this? Thanks, Catalin ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel