Hi Yun-hao, On Wed, Jun 3, 2020 at 10:43 AM Marcel Holtmann <marcel@xxxxxxxxxxxx> wrote: > > Hi Yun-hao, > > > When I ran the following tests in PTS qualification on Chrome OS, I > > couldn’t pass all of them because they all failed to create an AVDTP > > connection with channel type as ‘Streaming’ or ‘Enhanced > > Retransmission’. > > > > - MPS/AG-SRC-TG/HFAV/CLH/SD/BV-03-I > > - MPS/AG-SRC-TG/HFAV/CLH/SD/BV-04-I > > - MPS/AG-SRC-TG/HFAV/CLH/SD/BV-05-I > > - MPS/AG-SRC-TG/HFAV/CLH/SD/BV-06-I > > > > It looks like bluez doesn’t want to change its mode even though it > > claims it supports them. Our question is do we still want to enable > > this feature as default? We don't use ERTM on AVDTP connections, in fact only AVRCP Browsing channel requires that but I guess you want low level testing of L2CAP parameters it more common to use l2test instead, or this does not come from L2CAP test spec? > I am a bit confused. So when you use the disable_ertm kernel parameters, these test pass? But ERTM is mandatory for AVRCP 1.3 and later. > > Are we sure that MPS test cases are correct? I mean, we never required ERTM for HFP since that is based on RFCOMM and ERTM is useless for RFCOMM. > > Regards > > Marcel > -- Luiz Augusto von Dentz
