Re: [bluetooth] linux-3.x regression (bisected)

From: Gustavo Padovan
Date: Tue Dec 27 2011 - 20:22:36 EST


Hi Rene,

* Rene Herman <rene.herman@xxxxxxxxx> [2011-12-27 23:19:40 +0100]:

> On 27-12-11 21:30, Gustavo Padovan wrote:
>
> >Seems your extfeatures is telling you something different from what it really
> >supports. Can you try with the following diff (use the dynamic debug that Andre
> >told you)
>
> Attached. The result is "features: 0xff".
>
> I suppose that (should) mean(s) "all features"; if that's not
> actually a valid possibility due, perhaps, to undefined or mutually
> exclusive bits then maybe it's an option to take 0xff to mean that
> the adapter doesn't in fact support any of them?
>
> >Also the output of hcidump would nice.
>
> If the below (which is what hcidump spit back at me at some as far
> as I could determine random moment) is not what you wanted, I
> believe you will need to specify which action to take while
> monitoring things with hcidump.
>
> ==============
> HCI sniffer - Bluetooth packet analyzer ver 2.1
> device: hci0 snap_len: 1028 filter: 0xffffffff
> < HCI Command: Reset (0x03|0x0003) plen 0
> > HCI Event: Command Complete (0x0e) plen 4
> Reset (0x03|0x0003) ncmd 1
> status 0x00
> < HCI Command: Read Local Supported Features (0x04|0x0003) plen 0
> > HCI Event: Command Complete (0x0e) plen 12
> Read Local Supported Features (0x04|0x0003) ncmd 1
> status 0x00
> Features: 0xff 0xfe 0xff 0x7e 0x98 0x19 0x00 0x80
> < HCI Command: Read Local Version Information (0x04|0x0001) plen 0
> > HCI Event: Command Complete (0x0e) plen 12
> Read Local Version Information (0x04|0x0001) ncmd 1
> status 0x00
> HCI Version: 2.0 (0x3) HCI Revision: 0x2da
> LMP Version: 2.0 (0x3) LMP Subversion: 0x2da
> Manufacturer: Integrated System Solution Corp. (57)
> < HCI Command: Read Buffer Size (0x04|0x0005) plen 0
> > HCI Event: Command Complete (0x0e) plen 11
> Read Buffer Size (0x04|0x0005) ncmd 1
> status 0x00
> ACL MTU 1021:4 SCO MTU 48:10
> < HCI Command: Read BD ADDR (0x04|0x0009) plen 0
> > HCI Event: Command Complete (0x0e) plen 10
> Read BD ADDR (0x04|0x0009) ncmd 1
> status 0x00 bdaddr 00:11:67:C0:12:9E
> < HCI Command: Read Class of Device (0x03|0x0023) plen 0
> > HCI Event: Command Complete (0x0e) plen 7
> Read Class of Device (0x03|0x0023) ncmd 1
> status 0x00 class 0x000000
> < HCI Command: Read Local Name (0x03|0x0014) plen 0
> > HCI Event: Command Complete (0x0e) plen 252
> Read Local Name (0x03|0x0014) ncmd 1
> status 0x00 name 'ISSCEDRBTA'
> < HCI Command: Read Voice Setting (0x03|0x0025) plen 0
> > HCI Event: Command Complete (0x0e) plen 6
> Read Voice Setting (0x03|0x0025) ncmd 1
> status 0x00 voice setting 0x0060
> < HCI Command: Set Event Filter (0x03|0x0005) plen 1
> type 0 condition 0
> Clear all filters
> > HCI Event: Command Complete (0x0e) plen 4
> Set Event Filter (0x03|0x0005) ncmd 1
> status 0x00
> < HCI Command: Write Connection Accept Timeout (0x03|0x0016) plen 2
> timeout 32000
> > HCI Event: Command Complete (0x0e) plen 4
> Write Connection Accept Timeout (0x03|0x0016) ncmd 1
> status 0x00
> < HCI Command: Delete Stored Link Key (0x03|0x0012) plen 7
> bdaddr 00:00:00:00:00:00 all 1
> > HCI Event: Command Complete (0x0e) plen 6
> Delete Stored Link Key (0x03|0x0012) ncmd 1
> status 0x00 deleted 0
> < HCI Command: Set Event Mask (0x03|0x0001) plen 8
> Mask: 0xfffffbff07180000
> > HCI Event: Command Complete (0x0e) plen 4
> Set Event Mask (0x03|0x0001) ncmd 1
> status 0x00
> < HCI Command: Read Local Supported Commands (0x04|0x0002) plen 0
> > HCI Event: Command Complete (0x0e) plen 68
> Read Local Supported Commands (0x04|0x0002) ncmd 1
> status 0x00
> Commands: ffffef03ceffffffffffff9ff30fe8ff3c
> < HCI Command: Write Inquiry Mode (0x03|0x0045) plen 1
> mode 1
> > HCI Event: Command Complete (0x0e) plen 4
> Write Inquiry Mode (0x03|0x0045) ncmd 1
> status 0x00
> < HCI Command: Read Local Extended Features (0x04|0x0004) plen 1
> page 1
> > HCI Event: Command Complete (0x0e) plen 14
> Read Local Extended Features (0x04|0x0004) ncmd 1
> status 0x00 page 0 max 0
> Features: 0xff 0xfe 0xff 0x7e 0x98 0x19 0x00 0x80

For some reason your adapter is returning here the same value of Read Local
Features. I would say your device is broken. The only fix I have in mind now
is throw away the device.

Marcel, do you have any idea or have seen this before?

Gustavo
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