Hi,

Le vendredi 19 août 2016 à 11:43 +0300, Luiz Augusto von Dentz a
écrit :
> Hi Anthony,
> 
> On Thu, Aug 18, 2016 at 8:46 PM, Anthony Bourguignon <contact@toniob.
> net> wrote:
> > 
> > Le jeudi 18 août 2016 à 19:20 +0300, Luiz Augusto von Dentz a écrit
> > :
> > > 
> > > Hi Anthony,
> > > 
> > > On Thu, Aug 18, 2016 at 5:52 PM, Anthony Bourguignon <contact@ton
> > > iob.
> > > net> wrote:
> > > > 
> > > > 
> > > > Le jeudi 18 août 2016 à 16:56 +0300, Luiz Augusto von Dentz a
> > > > écrit
> > > > :
> > > > > 
> > > > > 
> > > > > Hi Anthony,
> > > > > 
> > > > > On Thu, Aug 18, 2016 at 1:11 PM, Anthony Bourguignon <contact
> > > > > @ton
> > > > > iob.
> > > > > net> wrote:
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > Hi,
> > > > > > 
> > > > > > I've recently bought a new xbox one controller as the 2016
> > > > > > version
> > > > > > has
> > > > > > bluetooth connectivity.
> > > > > > 
> > > > > > The controller is pairing and connecting well on a windows
> > > > > > 10
> > > > > > computer
> > > > > > and an android 4.4 tablet. But I can"t make it connect
> > > > > > under
> > > > > > linux
> > > > > > (Debian unstable, kernel 4.6 and 4.7-rc7, bluez 5.40 from
> > > > > > experimental). The pairing is ok but when I try to connect
> > > > > > to
> > > > > > controller, it stays connected for less than one second,
> > > > > > then
> > > > > > disconnects, then connects again and so one until the
> > > > > > controller
> > > > > > goes
> > > > > > to sleep, because of the lack of a remote connection.
> > > > > > 
> > > > > > Any idea ?
> > > > > 
> > > > > It seems there is some problem configuring the L2CAP
> > > > > connection
> > > > > (probably for SDP):
> > > > > 
> > > > > > 
> > > > > > 
> > > > > > 
> > > > > > ACL data: handle 256 flags 0x02 dlen 15
> > > > >     L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 3
> > > > > clen 1
> > > > >       Failure - unknown options
> > > > >       RFC
> > > > > < ACL data: handle 256 flags 0x00 dlen 12
> > > > >     L2CAP(s): Disconn req: dcid 0x0040 scid 0x0040
> > > > 
> > > > So, is it a bug of bluez or of the controller firmware ? Why is
> > > > it
> > > > possible to make a connection with an android tablet ?
> > > > 
> > > > Is there something more I can do to help ?
> > > 
> > > Well perhaps we can compare to what other stacks are responding,
> > > but
> > > this seem quite weird given L2CAP_Config request is an essential
> > > part
> > > of setting up L2CAP connections so a response with unknown
> > > options
> > > sounds kind broken, but perhaps other stacks are ignoring it.
> > 
> > I've juste made a capture with my android tablet. Maybe it'll help.
> > Association failed two times and succeded on the third one.
> 
> It seems the configuration request works just fine here:
> 
> < ACL Data TX: Handle 13 flags 0x02 dlen 12
> 
>                                                            83.379233
>       L2CAP: Connection Request (0x02) ident 15 len 4
>         PSM: 17 (0x0011)
>         Source CID: 75
> > 
> > HCI Event: Number of Completed Packets (0x13) plen
> > 5                                                                  
> >                                                                    
> >               83.381502
>         Num handles: 1
>         Handle: 13
>         Count: 1
> > 
> > ACL Data RX: Handle 13 flags 0x02 dlen
> > 16                                                                 
> >                                                                    
> >                           83.383358
>       L2CAP: Connection Response (0x03) ident 15 len 8
>         Destination CID: 64
>         Source CID: 75
>         Result: Connection pending (0x0001)
>         Status: No further information available (0x0000)
> > 
> > ACL Data RX: Handle 13 flags 0x02 dlen
> > 16                                                                 
> >                                                                    
> >                           83.384600
>       L2CAP: Connection Response (0x03) ident 15 len 8
>         Destination CID: 64
>         Source CID: 75
>         Result: Connection successful (0x0000)
>         Status: No further information available (0x0000)
> < ACL Data TX: Handle 13 flags 0x02 dlen 16
> 
>                                                            83.385274
>       L2CAP: Configure Request (0x04) ident 16 len 8
>         Destination CID: 64
>         Flags: 0x0000
>         Option: Maximum Transmission Unit (0x01) [mandatory]
>           MTU: 640
> > 
> > ACL Data RX: Handle 13 flags 0x02 dlen
> > 16                                                                 
> >                                                                    
> >                           83.385939
>       L2CAP: Configure Request (0x04) ident 5 len 8
>         Destination CID: 75
>         Flags: 0x0000
>         Option: Maximum Transmission Unit (0x01) [mandatory]
>           MTU: 1480
> < ACL Data TX: Handle 13 flags 0x02 dlen 14
> 
>                                                            83.386624
>       L2CAP: Configure Response (0x05) ident 5 len 6
>         Source CID: 64
>         Flags: 0x0000
>         Result: Success (0x0000)
> > 
> > HCI Event: Number of Completed Packets (0x13) plen
> > 5                                                                  
> >                                                                    
> >               83.387708
>         Num handles: 1
>         Handle: 13
>         Count: 1
> > 
> > ACL Data RX: Handle 13 flags 0x02 dlen
> > 14                                                                 
> >                                                                    
> >                           83.388425
>       L2CAP: Configure Response (0x05) ident 16 len 6
>         Source CID: 75
>         Flags: 0x0000
>         Result: Success (0x0000)
> 
> There is another difference here is that the connection to PSM 17 is
> started by the Android device while in our case it is started by the
> controller without doing any SDP(?) which sounds like the controller
> has been connected before or it is not behaving like a HID device. Is
> there a way to reset the controller to a state that it clears the
> paired devices?

Here is a new dump from the android device. I've paired the xbox
controller to another device before for it to change its bluetooth pair
(I hope it worked).