permission problem with bluetooth connection

trident · 12-18-2006, 05:10 PM

Hi,

I have a Dell M1210 laptop with openSuSE 10.2 and it recognizes the bluetooth device but my cellphone cannot see the laptop even if I enable inquiry and page scan through YaST. However, if I set up the bluetooth device using hciconfig as root, everything works fine.

Previously I had openSuSE 10.1 and no problem connecting.

I think this is due to a permission problem that prevents me from using the device. If I use hcitool with a non-root user, I can see the device and I can scan:

Code:

$ hcitool dev
Devices:
        hci0    00:16:41:89:BF:09
$ hcitool scan
Scanning ...
        00:16:B8:33:12:80       Trident
        00:10:C6:64:D0:0D       LATITUDE

but I cannot get info (hcitool info) or connect to other devices (hcitool cc):

Code:

$ hcitool info 00:16:B8:33:12:80 
Requesting information ...
Can't create connection: Operation not permitted

If I try hcitool with root, I can get info and I also can connect to my cellphone; and if I enable page and inquiry scan through hciconfig (not YaST) when I am root, my cellphone can also see my laptop.

So it seems to be some kind of permission problem, right? What causes this problem? Can anyone help? Thanks in advance.

unSpawn · 12-19-2006, 12:45 PM

Find out which devices it uses first?

trident · 12-19-2006, 02:00 PM

I am not sure if 'hci0' is what you are asking:

Code:

# hciconfig -a hci0
hci0:   Type: USB
        BD Address: 00:16:41:89:BF:09 ACL MTU: 384:8 SCO MTU: 64:8
        UP RUNNING PSCAN ISCAN 
        RX bytes:77 acl:0 sco:0 events:9 errors:0
        TX bytes:31 acl:0 sco:0 commands:8 errors:0
        Features: 0xff 0xff 0x9f 0xfe 0x9b 0xf9 0x00 0x80
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
        Link policy: 
        Link mode: SLAVE ACCEPT 
        Name: 'Dell Wireless 350 Bluetooth Internal Car'
        Class: 0x000000
        Service Classes: Unspecified
        Device Class: Miscellaneous, 
        HCI Ver: 2.0 (0x3) HCI Rev: 0x976 LMP Ver: 2.0 (0x3) LMP Subver: 0x976
        Manufacturer: Cambridge Silicon Radio (10)

I don't know how to find out to which device (under /dev) this bluetooth device is mapped. :-} It should be one of the USB devices, but how can I find out which one?

unSpawn · 12-20-2006, 06:48 AM

Looking a bit further you're right, this isn't as obvious and I haven't found device either except for a row of "/dev/ttyU?" ones and that only after reading some Holtmann docs. You may want to use sudo as a temporary workaround.

trident · 12-20-2006, 09:21 AM

Thanks for spending the time.

I will post it here if I find any answer.