From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Mario Demontis To: bluez-users@lists.sourceforge.net Content-Type: text/plain Message-Id: <1133028275.9123.29.camel@localhost.localdomain> Mime-Version: 1.0 Subject: [Bluez-users] Bluetooth connection too slow Sender: bluez-users-admin@lists.sourceforge.net Errors-To: bluez-users-admin@lists.sourceforge.net Reply-To: bluez-users@lists.sourceforge.net List-Unsubscribe: , List-Id: BlueZ users List-Post: List-Help: List-Subscribe: , List-Archive: Date: Sat, 26 Nov 2005 19:04:35 +0100 Hello I recently bought a Bluetooth 2.0 EDR USB adapter (Trust, BT-2200Tp), because I wanted to try it out with my new Motorola E1070 (UMTS phone). I tried it out with my Ubuntu linux. The device has been recognized properly. Then I tried the Internet connection (with UMTS you can have more than 30 kBytes/s). Unfortunately all I could see was a transfer rate (taken with wget downloading the kernel sources from a fast mirror) of about 9 kB/s. I also tried to do the same with Windows XP and there the transfer rate reached about 32 kB/s!! I did the same several times and all the times I had the same results. Furthermore, I tried to do the same under Linux with a USB connection, and I'm getting 32kB/s as well. This brought me to think the bottleneck is in the BT connection. This is how I'm setting the BT connection: $ sudo hcitool cc --role=m 00:0E:A1:45:1F:AE $ sudo hcitool auth 00:0E:A1:45:1F:AE $ sudo rfcomm bind 00:0E:A1:45:1F:AE $ sudo ln -sf /dev/rfcomm0 /dev/modem To dial I'm using exactly the same procedure as when using the USB connection (with kppp). I'm wondering if I need to tweak some parameter of the bluetooth connection. hciconfig gives me many info but I don't know how to interpret them and what options to give (where can I find documentation?). Here is what I'm getting with hciconfig: $ hciconfig hci0 -a hci0: Type: USB BD Address: 00:0E:A1:45:1F:AE ACL MTU: 1017:8 SCO MTU: 64:0 UP RUNNING PSCAN ISCAN RX bytes:466 acl:0 sco:0 events:27 errors:0 TX bytes:378 acl:0 sco:0 commands:21 errors:0 Features: 0xff 0xff 0x8d 0xfe 0x9b 0xf9 0x00 0x80 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 Link policy: RSWITCH HOLD SNIFF PARK Link mode: SLAVE ACCEPT Name: 'agnello-0' Class: 0x100100 Service Classes: Object Transfer Device Class: Computer, Uncategorized HCI Ver: 2.0 (0x3) HCI Rev: 0x2902 LMP Ver: 2.0 (0x3) LMP Subver: 0x4127 Manufacturer: Broadcom Corporation (15) Does anyone have some suggestion in order to help me to configure properly my BT dongle? Thanks Mario -- Email.it, the professional e-mail, gratis per te: http://www.email.it/f Sponsor: Per la casa dei tuoi sogni, la soluzione è un Credito Casa Findomestic, facile e senza anticipi! Clicca qui: http://adv.email.it/cgi-bin/foclick.cgi?mid=3939&d=26-11 ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users