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Re: [bluetooth-dev] abuut bti and btdm



Hi Siumama,

What version of kernel are you using? Preferably use the latest(2.4.10).

While I cannot authoritatively state this as a solution. It worked for
me for the same error, hence the suggestion.

regards,
Vinay



siumama great wrote:
> 
> Hi! Hi!,
>        I wanna ask about the bti and btdm. ppl tell me that the btd s an old
> version and already obsolete. but when i am using bti and btdm, which is the
> correct version, it said HCI failed to initialize and "waitpid sdp server :
> NO child processes". could anyone tell me what's happened???
> the log is as below:
> 
> Oct  5 22:36:21 localhost btdm: Registered bluetooth line discipline on
> /dev/ttyUB0
> Oct  5 22:36:21 localhost btdm: Init stack
> Oct  5 22:36:21 localhost kernel: usb-uhci.c: ENXIO c0418280, flags 0, urb
> c39129c0, burb c39129c0
> Oct  5 22:36:21 localhost kernel: BT (ldisc) bt_tty_open
> Oct  5 22:36:21 localhost kernel: BT SYS: Setting BT driver to use serial
> tty
> Oct  5 22:36:21 localhost kernel: BT (driver) bt_open on line 7
> Oct  5 22:36:21 localhost kernel: BT (driver) Registering tty on line 7
> (btdm)
> Oct  5 22:36:21 localhost kernel: BT (driver) Now 1 open fd:s for ttyBTC
> [btdm]
> Oct  5 22:36:21 localhost kernel: BT (ldisc) bt_tty_ioctl: forwarding ioctl
> 0x540b to n_tty line disc
> Oct  5 22:36:21 localhost kernel: BT SYS: Initialising Bluetooth Stack
> Oct  5 22:36:21 localhost kernel: BT SYS: Current HW: Ericsson
> Oct  5 22:36:21 localhost kernel: BT SYS: Initialising BTMEM [2500 bytes]
> Oct  5 22:36:21 localhost kernel: BT SYS: Initialising HCI
> Oct  5 22:36:21 localhost kernel: BT SYS: HCI emulator off
> Oct  5 22:36:21 localhost kernel: BT SYS: Initialising HCI inbuffers [800]
> Oct  5 22:36:21 localhost kernel: BT SYS: Reading buffer sizes in HW module
> Oct  5 22:36:21 localhost kernel: cmd_pkt from interrupt!
> Oct  5 22:36:23 localhost kernel: cmd_timeout: Timeout when waiting for
> command response
> Oct  5 22:36:23 localhost kernel: BT SYS: Reading firmware info in HW module
> Oct  5 22:36:23 localhost kernel: cmd_pkt from interrupt!
> Oct  5 22:36:25 localhost btdm: Shutting down bluetooth stack
> Oct  5 22:36:25 localhost btdm: Init failed after second try, giving up...
> Oct  5 22:36:25 localhost btdm: Shutting down bluetooth stack
> Oct  5 22:36:25 localhost kernel: cmd_timeout: Timeout when waiting for
> command response
> Oct  5 22:36:25 localhost kernel: BT SYS: Host flow control not enabled
> Oct  5 22:36:25 localhost kernel: BT SYS: M/S switch disabled
> Oct  5 22:36:25 localhost kernel: BT SYS: Force M/S switch set to 0
> Oct  5 22:36:25 localhost kernel: BT SYS: ERROR :HCI failed to initialize
> Oct  5 22:36:25 localhost kernel: init_failed_exit1
> Oct  5 22:36:25 localhost kernel: init_failed_exit0
> Oct  5 22:36:25 localhost kernel: BT SYS: Shutting down BTMEM
> Oct  5 22:36:25 localhost kernel: BT SYS: Shutting down bluetooth stack
> Oct  5 22:36:25 localhost kernel: BT SYS: warning :Bluetooth stack not
> initiated
> Oct  5 22:36:25 localhost kernel: BT SYS: Shutting down bluetooth stack
> Oct  5 22:36:25 localhost kernel: BT SYS: warning :Bluetooth stack not
> initiated
> Oct  5 22:36:25 localhost kernel: BT (driver) bt_close on line 7
> Oct  5 22:36:25 localhost kernel: BT (driver) Unregistering tty on line 7
> Oct  5 22:36:25 localhost kernel: BT (ldisc) bt_tty_ioctl: forwarding ioctl
> 0x540b to n_tty line disc
> 
> Best Regards,
> vincent
> 
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-- 
----------------------------------------------------------------------
Vinay Nathan

Software Engineer               |  MS in Computer Science,
Bluetooth Group                 |  University of Southern California,
Pace SoftSilicon, Pune, INDIA.  |  LA, USA.
www.pace-softsilicon.com        |  
Off: (9120)4004291 ext. 230     |  
Res: (9120)5430297              |

If the only tool you have is a hammer, you tend to see every problem 
as a nail.- Abraham Maslow
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