* [Bluez-devel] SDP & RFCOMM SYNC @ 2005-01-07 9:38 Amit Kumar Goel 2005-01-07 12:55 ` Marcel Holtmann 0 siblings, 1 reply; 8+ messages in thread From: Amit Kumar Goel @ 2005-01-07 9:38 UTC (permalink / raw) To: Bluez-devel Hi frds, I am working over SDP layer & i want to suport multiple profile over rfcomm. I want to know how I can implement the following situation. Already there is one rfcomm (ACL) connection with the remote device by a profile .Other profile wants to make sdp session with the same device.How can we send query request over the l2cap chanel? If so, wat will happen after if sdp sends a disconnect request after query? Regards Amit ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Bluez-devel] SDP & RFCOMM SYNC 2005-01-07 9:38 [Bluez-devel] SDP & RFCOMM SYNC Amit Kumar Goel @ 2005-01-07 12:55 ` Marcel Holtmann 2005-01-07 13:17 ` Amit Kumar Goel 0 siblings, 1 reply; 8+ messages in thread From: Marcel Holtmann @ 2005-01-07 12:55 UTC (permalink / raw) To: BlueZ Mailing List Hi Amit, > I am working over SDP layer & i want to suport multiple profile over rfcomm. > > I want to know how I can implement the following situation. > > Already there is one rfcomm (ACL) connection with the remote device by > a profile .Other profile wants to make sdp session with the same > device.How can we send query request over the l2cap chanel? > > If so, wat will happen after if sdp sends a disconnect request after query? this simply works. The kernel is able to handle multiple L2CAP and RFCOMM connections without any problems. Regards Marcel ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Bluez-devel] SDP & RFCOMM SYNC 2005-01-07 12:55 ` Marcel Holtmann @ 2005-01-07 13:17 ` Amit Kumar Goel 2005-01-07 13:38 ` Peter Wippich 2005-01-07 14:27 ` [Bluez-devel] SDP & RFCOMM SYNC Marcel Holtmann 0 siblings, 2 replies; 8+ messages in thread From: Amit Kumar Goel @ 2005-01-07 13:17 UTC (permalink / raw) To: bluez-devel Hi Marcel, can u explain how it is possible? Because only one l2cap connection is possible over a ACL connection (between 2 devices). According to SDP specification, SDP seesion first issue a SDP connect, send SDP query, wait for response and then send SDP disconnect. if we start a SDP session, What will happen with the l2cap connection, over which 1( or more ) rfcomm session is running? Should l2cap implementation provide a support for this or SDP should check for that? if so how to implement this at the l2cap level? Regards Amit On Fri, 07 Jan 2005 13:55:31 +0100, Marcel Holtmann <marcel@holtmann.org> wrote: > Hi Amit, > > > I am working over SDP layer & i want to suport multiple profile over rfcomm. > > > > I want to know how I can implement the following situation. > > > > Already there is one rfcomm (ACL) connection with the remote device by > > a profile .Other profile wants to make sdp session with the same > > device.How can we send query request over the l2cap chanel? > > > > If so, wat will happen after if sdp sends a disconnect request after query? > > this simply works. The kernel is able to handle multiple L2CAP and > RFCOMM connections without any problems. > > Regards > > Marcel > > ------------------------------------------------------- > The SF.Net email is sponsored by: Beat the post-holiday blues > Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. > It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt > _______________________________________________ > Bluez-devel mailing list > Bluez-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bluez-devel > ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Bluez-devel] SDP & RFCOMM SYNC 2005-01-07 13:17 ` Amit Kumar Goel @ 2005-01-07 13:38 ` Peter Wippich 2005-01-07 13:54 ` [Bluez-devel] headset emulator apps Nelson Murilo 2005-01-07 14:27 ` [Bluez-devel] SDP & RFCOMM SYNC Marcel Holtmann 1 sibling, 1 reply; 8+ messages in thread From: Peter Wippich @ 2005-01-07 13:38 UTC (permalink / raw) To: bluez-devel Hi Amit, l2cap is a multiplexer protocol, which means that every l2cap connection has a different "channel". Each upper layer Protocol uses a different PSM (protocol service multiplexer). If I remeber right the PSM for RFCOMM is 3 and 2 for SDP. If you conect a RFCOMM session this is completly independent from a SDP session. Check l2cap protocoll specification. Ciao, Peter On Fri, 7 Jan 2005, Amit Kumar Goel wrote: > Hi Marcel, > > can u explain how it is possible? > > Because only one l2cap connection is possible over a ACL connection > (between 2 devices). > > According to SDP specification, SDP seesion first issue a SDP connect, > send SDP query, wait for response and then send SDP disconnect. > > if we start a SDP session, What will happen with the l2cap > connection, over which 1( or more ) rfcomm session is running? > > Should l2cap implementation provide a support for this or SDP should > check for that? > > if so how to implement this at the l2cap level? > > Regards > Amit > > On Fri, 07 Jan 2005 13:55:31 +0100, Marcel Holtmann <marcel@holtmann.org> wrote: > > Hi Amit, > > > > > I am working over SDP layer & i want to suport multiple profile over rfcomm. > > > > > > I want to know how I can implement the following situation. > > > > > > Already there is one rfcomm (ACL) connection with the remote device by > > > a profile .Other profile wants to make sdp session with the same > > > device.How can we send query request over the l2cap chanel? > > > > > > If so, wat will happen after if sdp sends a disconnect request after query? > > > > this simply works. The kernel is able to handle multiple L2CAP and > > RFCOMM connections without any problems. > > > > Regards > > > > Marcel > > > > ------------------------------------------------------- > > The SF.Net email is sponsored by: Beat the post-holiday blues > > Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. > > It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt > > _______________________________________________ > > Bluez-devel mailing list > > Bluez-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/bluez-devel > > > > > ------------------------------------------------------- > The SF.Net email is sponsored by: Beat the post-holiday blues > Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. > It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt > _______________________________________________ > Bluez-devel mailing list > Bluez-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bluez-devel > | Peter Wippich Voice: +49 30 46776411 | | G&W Instruments GmbH fax: +49 30 46776419 | | Gustav-Meyer-Allee 25, Geb. 12 Email: pewi@gw-instruments.de | | D-13355 Berlin / Germany | ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bluez-devel] headset emulator apps 2005-01-07 13:38 ` Peter Wippich @ 2005-01-07 13:54 ` Nelson Murilo 2005-01-07 18:27 ` Brad Midgley 0 siblings, 1 reply; 8+ messages in thread From: Nelson Murilo @ 2005-01-07 13:54 UTC (permalink / raw) To: bluez-devel Hi guys, sorry for off-topic, but anybody know any headset emulator for linux? My idea is send mp3 from my phone via bluetooth connection to my linux box, and may redirect sound for real sound sistem. Thanks in advance, ./nelson -murilo ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Bluez-devel] headset emulator apps 2005-01-07 13:54 ` [Bluez-devel] headset emulator apps Nelson Murilo @ 2005-01-07 18:27 ` Brad Midgley 2005-01-07 18:37 ` Nelson Murilo 0 siblings, 1 reply; 8+ messages in thread From: Brad Midgley @ 2005-01-07 18:27 UTC (permalink / raw) To: bluez-devel Nelson, You are not likely to find a phone that can send quality audio. You'd need it to support A2DP and most devices still don't. Plus, to decode it, you'd need to write the AVDTP signaling to operate the A2DP "sink" to receive audio. The only good news is you would be able to use the sbc decoder we have at bluetooth-alsa.sf.net to uncompress the audio. Brad Nelson Murilo wrote: > Hi guys, > > sorry for off-topic, but anybody know any headset emulator for > linux? > My idea is send mp3 from my phone via bluetooth connection to my linux box, > and may redirect sound for real sound sistem. > > Thanks in advance, > > ./nelson -murilo > > > ------------------------------------------------------- > The SF.Net email is sponsored by: Beat the post-holiday blues > Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. > It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt > _______________________________________________ > Bluez-devel mailing list > Bluez-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bluez-devel ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Bluez-devel] headset emulator apps 2005-01-07 18:27 ` Brad Midgley @ 2005-01-07 18:37 ` Nelson Murilo 0 siblings, 0 replies; 8+ messages in thread From: Nelson Murilo @ 2005-01-07 18:37 UTC (permalink / raw) To: bluez-devel Great! Now I have one point of start. Thanks a lot. ./nelson -murilo On Fri, Jan 07, 2005 at 11:27:46AM -0700, Brad Midgley wrote: > Nelson, > > You are not likely to find a phone that can send quality audio. You'd > need it to support A2DP and most devices still don't. > > Plus, to decode it, you'd need to write the AVDTP signaling to operate > the A2DP "sink" to receive audio. The only good news is you would be > able to use the sbc decoder we have at bluetooth-alsa.sf.net to > uncompress the audio. > > Brad > > Nelson Murilo wrote: > >Hi guys, > > > >sorry for off-topic, but anybody know any headset emulator for > >linux? > >My idea is send mp3 from my phone via bluetooth connection to my linux > >box, and may redirect sound for real sound sistem. > > > >Thanks in advance, > > > >./nelson -murilo > > > > > >------------------------------------------------------- > >The SF.Net email is sponsored by: Beat the post-holiday blues > >Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. > >It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt > >_______________________________________________ > >Bluez-devel mailing list > >Bluez-devel@lists.sourceforge.net > >https://lists.sourceforge.net/lists/listinfo/bluez-devel > > > ------------------------------------------------------- > The SF.Net email is sponsored by: Beat the post-holiday blues > Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. > It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt > _______________________________________________ > Bluez-devel mailing list > Bluez-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bluez-devel ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [Bluez-devel] SDP & RFCOMM SYNC 2005-01-07 13:17 ` Amit Kumar Goel 2005-01-07 13:38 ` Peter Wippich @ 2005-01-07 14:27 ` Marcel Holtmann 1 sibling, 0 replies; 8+ messages in thread From: Marcel Holtmann @ 2005-01-07 14:27 UTC (permalink / raw) To: BlueZ Mailing List Hi Amit, > can u explain how it is possible? > > Because only one l2cap connection is possible over a ACL connection > (between 2 devices). who said so? There can only be one ACL connection between two devices, but there is no limit for L2CAP connections. You can even have multiple connections on the same PSM. > According to SDP specification, SDP seesion first issue a SDP connect, > send SDP query, wait for response and then send SDP disconnect. > > if we start a SDP session, What will happen with the l2cap > connection, over which 1( or more ) rfcomm session is running? > > Should l2cap implementation provide a support for this or SDP should > check for that? > > if so how to implement this at the l2cap level? Read the specification and look at the source code. As I said, this simply works. Regards Marcel ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ Bluez-devel mailing list Bluez-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-devel ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2005-01-07 18:37 UTC | newest] Thread overview: 8+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2005-01-07 9:38 [Bluez-devel] SDP & RFCOMM SYNC Amit Kumar Goel 2005-01-07 12:55 ` Marcel Holtmann 2005-01-07 13:17 ` Amit Kumar Goel 2005-01-07 13:38 ` Peter Wippich 2005-01-07 13:54 ` [Bluez-devel] headset emulator apps Nelson Murilo 2005-01-07 18:27 ` Brad Midgley 2005-01-07 18:37 ` Nelson Murilo 2005-01-07 14:27 ` [Bluez-devel] SDP & RFCOMM SYNC Marcel Holtmann
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