Date: Wed, 16 May 2007 12:26:53 -0700 From: "Maksim Yevmenkin" <maksim.yevmenkin@gmail.com> To: "Vladimir Grebenschikov" <vova@sw.ru> Cc: bluetooth <bluetooth@freebsd.org> Subject: Re: Bluetooth Proximity Monitor on FreeBSD ? Message-ID: <bb4a86c70705161226v7274e505x6c6e2ddf29805aa3@mail.gmail.com> In-Reply-To: <1179336829.1498.9.camel@localhost> References: <1179237283.1397.25.camel@localhost> <464A8EFC.7060308@freebsd.org> <1179304640.45992.8.camel@localhost> <bb4a86c70705160945j3ab47faase4bdb197e812460d@mail.gmail.com> <1179336829.1498.9.camel@localhost>
index | next in thread | previous in thread | raw e-mail
On 5/16/07, Vladimir Grebenschikov <vova@sw.ru> wrote: > В ср, 16/05/2007 в 09:45 -0700, Maksim Yevmenkin пишет: > > > > Connection expires somehow in ~5 secs after creation. > > > Probably there is some way to do keep-alive connection ? > > > > > > My device is Nokia E60. > > > > run hcidump and see who initiated disconnect. my guess, its your nokia > > phone kills baseband after some period of inactivity. if that is the > > case then you have to use l2ping or something else. the idea is to > > keep sending stuff over baseband connection to keep it alive. > > Hm, l2ping does not helps (output just after connecting): > # l2ping -a e60 > 0 bytes from e60 seq_no=0 time=65.077 ms result=0 > 0 bytes from e60 seq_no=1 time=52.096 ms result=0 > 0 bytes from e60 seq_no=2 time=54.053 ms result=0 > 0 bytes from e60 seq_no=3 time=42.082 ms result=0 > 0 bytes from e60 seq_no=4 time=42.151 ms result=0 > 0 bytes from e60 seq_no=5 time=5129.224 ms result=0x4 <<< connection > lost here > ... well, that is just weird. while zero bytes response is normal (for nokia's), killing baseband connection while l2ping (in other words l2cap control channel) is active, is just does not make any sense. can you provide hcidump with l2ping active? i'd like to see who is killing baseband. btw, but if you let l2ping to continue to run it should re-establish baseband connection again. > hcidump (without l2ping): > > # hcidump -xt > HCIDump - HCI packet analyzer ver 1.5 > device: any snap_len: 65535 filter: 0xffffffff > 1179336718.824335 < HCI Command: Create Connection(0x01|0x0005) plen 13 > 36 E3 48 D1 12 00 18 4C 00 00 00 00 01 > 1179336718.827102 > HCI Event: Command Status(0x0f) plen 4 > 00 01 05 04 > 1179336719.858619 > HCI Event: Connect Complete(0x03) plen 11 > 00 0B 00 36 E3 48 D1 12 00 01 00 > 1179336719.858674 < HCI Command: Write Link Policy Settings(0x02|0x000d) > plen 4 > 0B 00 0F 00 > 1179336719.861166 > HCI Event: Command Complete(0x0e) plen 6 > 01 0D 08 00 0B 00 > 1179336719.881159 > HCI Event: Max Slots Change(0x1b) plen 3 > 0B 00 05 > 1179336729.090790 > HCI Event: Disconn Complete(0x05) plen 4 > 00 0B 00 13 > # yep, it seems like nokia kills baseband :( thanks, maxhelp
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bb4a86c70705161226v7274e505x6c6e2ddf29805aa3>