linux-kernel - Re: [PATCH][BLUETOOTH] add HCI_BROKEN_ISOC for 0e5e:6622 (bugzilla #9027)

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Date:	Wed, 13 Feb 2008 16:40:06 +0100
From:	Marcel Holtmann <marcel@...tmann.org>
To:	SDiZ <sdiz@...z.net>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH][BLUETOOTH] add HCI_BROKEN_ISOC for 0e5e:6622 (bugzilla
	#9027)

Hi,

> >> This patch fix bugzilla #9027.
> >> ``Syslog flooded with "hci_scodata_packet: hci0 SCO packet for unknown
> >> connection handle 92" message"
> >>
> >> see http://bugzilla.kernel.org/show_bug.cgi?id=9027
> >>     
> >
> > when we get the content of /proc/bus/usb/devices for this one. Do you
> > have the manufacturer name of it or at least an idea which kind of
> > device this is. Check "hciconfig hci0 version".
> >   
> It have no text on the chips and package, so I don't know the
> manufacturer name.

and what about "hciconfig hci0 version"?

> /proc/bus/usb/devices shows:
> 
> 
> T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
> D: Ver= 1.10 Cls=e0(unk. ) Sub=01 Prot=01 MxPS=16 #Cfgs= 1
> P: Vendor=0e5e ProdID=6622 Rev= 1.34
> C:* #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA
> I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
> E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms
> E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
> E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
> I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
> E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms
> E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms
> I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
> E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms
> E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms
> I:* If#= 1 Alt= 2 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
> E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms
> E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms

That is not all. Otherwise it is violating the Bluetooth HCI USB
specification and we have bigger problems when switching USB alternate
endpoints.

Regards

Marcel


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