Can't find device

Bluez-users Niv 2 participants 4 messages Jan 16, 2006 – Jan 18, 2006 Bluetooth drivers

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Niv

author

2006-01-16 15:07 UTC #0 lore raw

Problem: $ btsco -v 00:0D:44:33:E1:63
btsco v0.41
Error: control open (hw:4): No such device
Error: Can't find device. Bail

diagnoz:

Worked fine yesterday. I switched to alsa modules aka alsa-driver.

snd-bt-sco modprobe loads fine

I even compiled the emu10k1, which has a function that is used.

$ cat /proc/asound/cards
0 [V8237          ]: VIA8237 - VIA 8237
                     VIA 8237 with CMI9761 at 0xe800, irq 10
1 [Bt878          ]: Bt87x - Brooktree Bt878
                     Brooktree Bt878 at 0xe8101000, irq 11
2 [Audio          ]: USB-Audio - USB Audio
                     C-Media INC. USB Audio at usb-0000:00:10.3-2, full 
speed
3 [Headset        ]: Bluetooth SCO - BT Headset
                     BT Headset 1

l2ping 00:0D:44:33:E1:63
Ping: 00:0D:44:33:E1:63 from 00:10:60:A8:86:A3 (data size 44) ... 44 bytes from 00:0D:44:33:E1:63 id 0 time 42.46ms
44 bytes from 00:0D:44:33:E1:63 id 1 time 41.56ms
44 bytes from 00:0D:44:33:E1:63 id 2 time 34.55ms
44 bytes from 00:0D:44:33:E1:63 id 3 time 50.53ms
44 bytes from 00:0D:44:33:E1:63 id 4 time 49.51ms
5 sent, 5 received, 0% loss

Niv

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Niv

author

2006-01-17 01:33 UTC #1 lore raw

OK I am certain now. bluetooth-alsa cant work when using alsa-driver. Even when SND_HWDEP is included.

I cant use BT-alsa when I compile alsa as modules in the kernel.

I dont understand the difference.

Is it to do with new alsa-driver ?

Niv

Quoted 42 lines · Niv

Problem: $ btsco -v 00:0D:44:33:E1:63
btsco v0.41
Error: control open (hw:4): No such device
Error: Can't find device. Bail
diagnoz:
Worked fine yesterday. I switched to alsa modules aka alsa-driver.
snd-bt-sco modprobe loads fine
I even compiled the emu10k1, which has a function that is used.
$ cat /proc/asound/cards
0 [V8237          ]: VIA8237 - VIA 8237
                     VIA 8237 with CMI9761 at 0xe800, irq 10
1 [Bt878          ]: Bt87x - Brooktree Bt878
                     Brooktree Bt878 at 0xe8101000, irq 11
2 [Audio          ]: USB-Audio - USB Audio
                     C-Media INC. USB Audio at usb-0000:00:10.3-2, 
full speed
3 [Headset        ]: Bluetooth SCO - BT Headset
                     BT Headset 1
l2ping 00:0D:44:33:E1:63
Ping: 00:0D:44:33:E1:63 from 00:10:60:A8:86:A3 (data size 44) ... 44 bytes from 00:0D:44:33:E1:63 id 0 time 42.46ms
44 bytes from 00:0D:44:33:E1:63 id 1 time 41.56ms
44 bytes from 00:0D:44:33:E1:63 id 2 time 34.55ms
44 bytes from 00:0D:44:33:E1:63 id 3 time 50.53ms
44 bytes from 00:0D:44:33:E1:63 id 4 time 49.51ms
5 sent, 5 received, 0% loss
Niv

Quoted 9 lines

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Brad Midgley

2006-01-17 20:58 UTC #2 lore raw

Niv

Quoted 2 lines

OK I am certain now. bluetooth-alsa cant work when using alsa-driver. Even when SND_HWDEP is included.

fwiw, the nokia 770 guys came up with a cleaner way to get the hwdep stuff built.

Quoted 1 line

I cant use BT-alsa when I compile alsa as modules in the kernel.

explain what you mean here. as opposed to compiling everything directly into the kernel?

Quoted 4 lines

I dont understand the difference.
Is it to do with new alsa-driver ?

you mean the new alsa driver inside btsco? it's not working yet and it shouldn't be causing any problems.

brad

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NIV VAIZER

author

2006-01-18 15:24 UTC #3 lore raw

Hi,
I am attaching alsa.before and after.

first describes a working status using the given ebuild.
the second is when I removed alsa from the kernel and used alsa-driver. I marked out the line concering SND_HWDEP in order to emerge the ebuild. as can be seen I compiled a module for SND_EMU10k1.
yet hcidump -X -V gives noting. like its failing in the alsa level.

It may be that SND_HWDEP thingy,
Niv

Quoted 35 lines · Brad Midgley

Niv
Quoted 4 lines
OK I am certain now. bluetooth-alsa cant work when using alsa-driver. Even when SND_HWDEP is included.
fwiw, the nokia 770 guys came up with a cleaner way to get the hwdep stuff built.
Quoted 3 lines
I cant use BT-alsa when I compile alsa as modules in the kernel.
explain what you mean here. as opposed to compiling everything directly into the kernel?
Quoted 5 lines
I dont understand the difference.
Is it to do with new alsa-driver ?
you mean the new alsa driver inside btsco? it's not working yet and it shouldn't be causing any problems.
brad

Quoted 11 lines

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Linux blacky 2.6.14-ck8 #14 Tue Jan 17 01:43:12 IST 2006 i686 AMD Athlon(tm) XP 3200+ AuthenticAMD GNU/Linux
* installed packages
media-libs/alsa-lib-1.0.10
media-libs/alsa-oss-1.0.10-r1
media-sound/alsa-headers-1.0.11_rc2
media-sound/alsa-tools-1.0.10
media-sound/alsa-utils-1.0.10
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_HWDEP=m
CONFIG_SND_RAWMIDI=m
CONFIG_SND_SEQUENCER=m
CONFIG_SND_OSSEMUL=y
CONFIG_SND_MIXER_OSS=m
CONFIG_SND_PCM_OSS=m
CONFIG_SND_RTCTIMER=m
CONFIG_SND_SEQ_RTCTIMER_DEFAULT=y
CONFIG_SND_MPU401_UART=m
CONFIG_SND_OPL3_LIB=m
CONFIG_SND_AC97_CODEC=m
CONFIG_SND_AC97_BUS=m
CONFIG_SND_BT87X=m
CONFIG_SND_BT87X_OVERCLOCK=y
CONFIG_SND_CMIPCI=m
CONFIG_SND_VIA82XX=m
CONFIG_SND_USB_AUDIO=m

Module                  Size  Used by
snd_bt_sco             12076  0 
snd_seq                48272  0 
snd_pcm_oss            49440  0 
snd_mixer_oss          17280  1 snd_pcm_oss
snd_usb_audio          74688  0 
snd_usb_lib            14592  1 snd_usb_audio
snd_hwdep               7200  2 snd_bt_sco,snd_usb_audio
snd_bt87x              11976  0 
snd_via82xx            23328  0 
snd_ac97_codec         92924  1 snd_via82xx
snd_ac97_bus            2048  1 snd_ac97_codec
snd_pcm                80392  6 snd_bt_sco,snd_pcm_oss,snd_usb_audio,snd_bt87x,snd_via82xx,snd_ac97_codec
snd_timer              20996  2 snd_seq,snd_pcm
snd_page_alloc          8712  4 snd_bt_sco,snd_bt87x,snd_via82xx,snd_pcm
snd_mpu401_uart         6016  1 snd_via82xx
snd_rawmidi            20256  2 snd_usb_lib,snd_mpu401_uart
snd_seq_device          7052  2 snd_seq,snd_rawmidi
snd                    45924  14 snd_bt_sco,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_usb_audio,snd_hwdep,snd_bt87x,snd_via82xx,snd_ac97_codec,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
soundcore               7392  1 snd
it87                   19488  0 
hwmon_vid               2304  1 it87
eeprom                  5904  0 
i2c_isa                 3584  1 it87
rfcomm                 35356  1 
l2cap                  21124  5 rfcomm
spca5xx               684432  0 
hci_usb                13072  2 
usbhid                 33284  0 
i2c_viapro              6928  0 
rtc                    10168  0 
pcspkr                  3296  0 
tuner                  38184  0 
tvaudio                22300  0 
bttv                  155088  0 
video_buf              17284  1 bttv
firmware_class          8192  1 bttv
v4l2_common             4864  1 bttv
btcx_risc               4104  1 bttv
tveeprom               12432  1 bttv
videodev                7424  2 spca5xx,bttv
bluetooth              41732  7 rfcomm,l2cap,hci_usb
ati_agp                 6796  0

btsco -v 00:02:72:E1:03:6A
btsco v0.41
Device is 3:0
Voice setting: 0x0060
RFCOMM channel 2 connected

HCI sniffer - Bluetooth packet analyzer ver 1.27
device: hci0 snap_len: 1028 filter: 0xffffffff
< HCI Command: Create Connection (0x01|0x0005) plen 13
bdaddr 00:02:72:E1:03:6A ptype 0xcc18 rswitch 0x01 clkoffset 0x0000 Packet type: DM1 DM3 DM5 DH1 DH3 DH5

Quoted 1 line

HCI Event: Command Status (0x0f) plen 4

    Create Connection (0x01|0x0005) status 0x00 ncmd 1

Quoted 1 line

HCI Event: Connect Complete (0x03) plen 11

    status 0x00 handle 41 bdaddr 00:02:72:E1:03:6A type ACL encrypt 0x00
< ACL data: handle 41 flags 0x02 dlen 12
    L2CAP(s): Connect req: psm 1 scid 0x0040

< HCI Command: Write Link Policy Settings (0x02|0x000d) plen 4
handle 41 policy 0x0f
Link policy: RSWITCH HOLD SNIFF PARK

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

HCI Event: Command Complete (0x0e) plen 6

    Write Link Policy Settings (0x02|0x000d) ncmd 1
    status 0x00 handle 41

Quoted 1 line

HCI Event: Page Scan Repetition Mode Change (0x20) plen 7

    bdaddr 00:02:72:E1:03:6A mode 1

Quoted 1 line

HCI Event: Max Slots Change (0x1b) plen 3

handle 41 slots 5

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 16

L2CAP(s): Connect rsp: dcid 0x004c scid 0x0040 result 1 status 2
Connection pending - Authorization pending

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 16

    L2CAP(s): Connect rsp: dcid 0x004c scid 0x0040 result 0 status 0
      Connection successful
< ACL data: handle 41 flags 0x02 dlen 12
    L2CAP(s): Config req: dcid 0x004c flags 0x00 clen 0

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 14

    L2CAP(s): Config rsp: scid 0x0040 flags 0x00 result 0 clen 0
      Success

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 16

    L2CAP(s): Config req: dcid 0x0040 flags 0x00 clen 4
      MTU 48 
< ACL data: handle 41 flags 0x02 dlen 14
    L2CAP(s): Config rsp: scid 0x004c flags 0x00 result 0 clen 0
      Success
< ACL data: handle 41 flags 0x02 dlen 24
    L2CAP(d): cid 0x004c len 20 [psm 1]
        SDP SSA Req: tid 0x0 len 0xf
          pat uuid-16 0x1108 (Headset)
          max 65535
          aid(s) 0x0000 - 0xffff
          cont 00

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 52

    L2CAP(d): cid 0x0040 len 48 [psm 1]
        SDP SSA Rsp: tid 0x0 len 0x2b
          count 38
          cont 02 00 30
< ACL data: handle 41 flags 0x02 dlen 26
    L2CAP(d): cid 0x004c len 22 [psm 1]
        SDP SSA Req: tid 0x1 len 0x11
          pat uuid-16 0x1108 (Headset)
          max 65535
          aid(s) 0x0000 - 0xffff
          cont 02 00 30

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 52

    L2CAP(d): cid 0x0040 len 48 [psm 1]
        SDP SSA Rsp: tid 0x1 len 0x2b
          count 38
          cont 02 00 0A
< ACL data: handle 41 flags 0x02 dlen 26
    L2CAP(d): cid 0x004c len 22 [psm 1]
        SDP SSA Req: tid 0x2 len 0x11
          pat uuid-16 0x1108 (Headset)
          max 65535
          aid(s) 0x0000 - 0xffff
          cont 02 00 0A

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 22

    L2CAP(d): cid 0x0040 len 18 [psm 1]
        SDP SSA Rsp: tid 0x2 len 0xd
          count 10
          record #0
              aid 0x0000 (SrvRecHndl)
                 uint 0x10006
              aid 0x0001 (SrvClassIDList)
                 < uuid-16 0x1108 (Headset) uuid-16 0x1203 (Audio) >
              aid 0x0004 (ProtocolDescList)
                 < < uuid-16 0x0100 (L2CAP) > <
                 uuid-16 0x0003 (RFCOMM) uint 0x2 > >
              aid 0x0006 (LangBaseAttrIDList)
                 < uint 0x656e uint 0x6a uint 0x100 >
              aid 0x0009 (BTProfileDescList)
                 < < uuid-16 0x1108 (Headset) uint 0x100 > >
              aid 0x0100 (SrvName)
                 str "Headset"
              aid 0x0302 (unknown)
                 bool 0x1
          cont 00
< ACL data: handle 41 flags 0x02 dlen 12
    L2CAP(s): Disconn req: dcid 0x004c scid 0x0040

< HCI Command: Read Voice Setting (0x03|0x0025) plen 0

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

HCI Event: Command Complete (0x0e) plen 6

    Read Voice Setting (0x03|0x0025) ncmd 1
    status 0x00 voice setting 0x0060
< ACL data: handle 41 flags 0x02 dlen 12
    L2CAP(s): Connect req: psm 3 scid 0x0041

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 12

    L2CAP(s): Disconn rsp: dcid 0x004c scid 0x0040

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 16

L2CAP(s): Connect rsp: dcid 0x004d scid 0x0041 result 1 status 2
Connection pending - Authorization pending

Quoted 1 line

HCI Event: Link Key Request (0x17) plen 6

    bdaddr 00:02:72:E1:03:6A
< HCI Command: Link Key Request Reply (0x01|0x000b) plen 22
    bdaddr 00:02:72:E1:03:6A key 97A0F2A60912C2434272463089F84F1B

Quoted 1 line

HCI Event: Command Complete (0x0e) plen 10

    Link Key Request Reply (0x01|0x000b) ncmd 1
    status 0x00 bdaddr 00:02:72:E1:03:6A

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 16

    L2CAP(s): Connect rsp: dcid 0x004d scid 0x0041 result 0 status 0
      Connection successful
< ACL data: handle 41 flags 0x02 dlen 16
    L2CAP(s): Config req: dcid 0x004d flags 0x00 clen 4
      MTU 1024

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 14

    L2CAP(s): Config rsp: scid 0x0041 flags 0x00 result 0 clen 0
      Success

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 16

    L2CAP(s): Config req: dcid 0x0041 flags 0x00 clen 4
      MTU 1024 
< ACL data: handle 41 flags 0x02 dlen 14
    L2CAP(s): Config rsp: scid 0x004d flags 0x00 result 0 clen 0
      Success
< ACL data: handle 41 flags 0x02 dlen 8
    L2CAP(d): cid 0x004d len 4 [psm 3]
      RFCOMM(s): SABM: cr 1 dlci 0 pf 1 ilen 0 fcs 0x1c

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 8

    L2CAP(d): cid 0x0041 len 4 [psm 3]
      RFCOMM(s): UA: cr 1 dlci 0 pf 1 ilen 0 fcs 0xd7

< ACL data: handle 41 flags 0x02 dlen 18
L2CAP(d): cid 0x004d len 14 [psm 3]
RFCOMM(s): PN CMD: cr 1 dlci 0 pf 0 ilen 10 fcs 0x70 mcc_len 8 dlci 4 frame_type 0 credit_flow 15 pri 7 ack_timer 0 frame_size 1019 max_retrans 0 credits 7

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 18

L2CAP(d): cid 0x0041 len 14 [psm 3]
RFCOMM(s): PN RSP: cr 0 dlci 0 pf 0 ilen 10 fcs 0xaa mcc_len 8 dlci 4 frame_type 0 credit_flow 14 pri 7 ack_timer 0 frame_size 127 max_retrans 0 credits 0
< ACL data: handle 41 flags 0x02 dlen 8

    L2CAP(d): cid 0x004d len 4 [psm 3]
      RFCOMM(s): SABM: cr 1 dlci 4 pf 1 ilen 0 fcs 0x96

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 8

    L2CAP(d): cid 0x0041 len 4 [psm 3]
      RFCOMM(s): UA: cr 1 dlci 4 pf 1 ilen 0 fcs 0x5d 
< ACL data: handle 41 flags 0x02 dlen 12
    L2CAP(d): cid 0x004d len 8 [psm 3]
      RFCOMM(s): MSC CMD: cr 1 dlci 0 pf 0 ilen 4 fcs 0x70 mcc_len 2
      dlci 4 fc 0 rtc 1 rtr 1 ic 0 dv 1 b1 0 b2 0 b3 0 len 0

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 12

    L2CAP(d): cid 0x0041 len 8 [psm 3]
      RFCOMM(s): MSC CMD: cr 0 dlci 0 pf 0 ilen 4 fcs 0xaa mcc_len 2
      dlci 4 fc 0 rtc 1 rtr 1 ic 0 dv 0 b1 0 b2 0 b3 0 len 0
< ACL data: handle 41 flags 0x02 dlen 12
    L2CAP(d): cid 0x004d len 8 [psm 3]
      RFCOMM(s): MSC RSP: cr 1 dlci 0 pf 0 ilen 4 fcs 0x70 mcc_len 2
      dlci 4 fc 0 rtc 1 rtr 1 ic 0 dv 0 b1 0 b2 0 b3 0 len 0

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 12

    L2CAP(d): cid 0x0041 len 8 [psm 3]
      RFCOMM(s): MSC RSP: cr 0 dlci 0 pf 0 ilen 4 fcs 0xaa mcc_len 2
      dlci 4 fc 0 rtc 1 rtr 1 ic 0 dv 1 b1 0 b2 0 b3 0 len 0
< ACL data: handle 41 flags 0x02 dlen 9
    L2CAP(d): cid 0x004d len 5 [psm 3]
      RFCOMM(d): UIH: cr 1 dlci 4 pf 1 ilen 0 fcs 0x79 credits 33

Quoted 1 line

ACL data: handle 41 flags 0x02 dlen 9

    L2CAP(d): cid 0x0041 len 5 [psm 3]
      RFCOMM(d): UIH: cr 0 dlci 4 pf 1 ilen 0 fcs 0xa3 credits 15

Quoted 1 line

HCI Event: Number of Completed Packets (0x13) plen 5

handle 41 packets 1

Quoted 1 line

HCI Event: Role Change (0x12) plen 8

    status 0x00 bdaddr 00:02:72:E1:03:6A role 0x01
    Role: Slave

Quoted 1 line

HCI Event: Max Slots Change (0x1b) plen 3

handle 41 slots 5

Quoted 1 line

HCI Event: Mode Change (0x14) plen 6

    status 0x00 handle 41 mode 0x02 interval 800
    Mode: Sniff

Linux blacky 2.6.14-ck8 #16 Wed Jan 18 16:44:08 IST 2006 i686 AMD Athlon(tm) XP 3200+ AuthenticAMD GNU/Linux
* installed packages
media-libs/alsa-lib-1.0.10
media-libs/alsa-oss-1.0.10-r1
media-sound/alsa-driver-1.0.11_rc2
media-sound/alsa-headers-1.0.11_rc2
media-sound/alsa-tools-1.0.10
media-sound/alsa-utils-1.0.10
empty

Module                  Size  Used by
snd_bt_sco             12076  0 
it87                   19488  0 
hwmon_vid               2304  1 it87
eeprom                  5904  0 
i2c_isa                 3584  1 it87
rfcomm                 35356  1 
l2cap                  21124  5 rfcomm
spca5xx               684432  0 
hci_usb                13072  2 
usbhid                 33284  0 
i2c_viapro              6928  0 
snd_pcm_oss            48672  0 
snd_mixer_oss          17024  1 snd_pcm_oss
snd_seq_oss            33408  0 
snd_seq_midi_event      6016  1 snd_seq_oss
snd_seq                48464  4 snd_seq_oss,snd_seq_midi_event
snd_bt87x              12232  0 
snd_via82xx            23572  0 
snd_ac97_codec         93984  1 snd_via82xx
snd_ac97_bus            2048  1 snd_ac97_codec
snd_mpu401_uart         6272  1 snd_via82xx
rtc                    10168  0 
pcspkr                  3296  0 
tuner                  38184  0 
tvaudio                22300  0 
bttv                  155088  0 
video_buf              17284  1 bttv
firmware_class          8192  1 bttv
v4l2_common             4864  1 bttv
btcx_risc               4104  1 bttv
tveeprom               12432  1 bttv
videodev                7424  2 spca5xx,bttv
bluetooth              41732  7 rfcomm,l2cap,hci_usb
ati_agp                 6796  0 
snd_usb_audio          75712  0 
snd_pcm                80648  6 snd_bt_sco,snd_pcm_oss,snd_bt87x,snd_via82xx,snd_ac97_codec,snd_usb_audio
snd_timer              21252  2 snd_seq,snd_pcm
snd_page_alloc          8712  4 snd_bt_sco,snd_bt87x,snd_via82xx,snd_pcm
snd_usb_lib            14720  1 snd_usb_audio
snd_rawmidi            20640  2 snd_mpu401_uart,snd_usb_lib
snd_seq_device          7308  3 snd_seq_oss,snd_seq,snd_rawmidi
snd_hwdep               7684  2 snd_bt_sco,snd_usb_audio
snd                    49984  16 snd_bt_sco,snd_pcm_oss,snd_mixer_oss,snd_seq_oss,snd_seq,snd_bt87x,snd_via82xx,snd_ac97_codec,snd_mpu401_uart,snd_usb_audio,snd_pcm,snd_timer,snd_usb_lib,snd_rawmidi,snd_seq_device,snd_hwdep

btsco -v 00:02:72:E1:03:6A
btsco v0.41
Error: control open (hw:4): No such device
Error: Can't find device. Bail

hcidump -X -V (will btsco -v ..)
empty