Can I make USB sound card be available over BT? How?

Buildroot W.P. 2 participants 3 messages Feb 17, 2013 – Feb 19, 2013

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author

2013-02-17 23:56 UTC #0 lore raw

Hi there,
I have following setup:
router with USB - TP-LINK MR-3220,
USB 2.0 hub,
CSR BT USB dongle plugged to hub,
"USB audio card" plugged to the same hub.

I use (successfully) this "card" to play internet radio (wget | madplay).

Now I want to enable this router to act as HF (stereo, A2DP?) device over Bluetooth.
What modules (programs) I need,
and most important:how to configure it?

Current software is OpenWRT trunk 33310, compiled at home. [I am not "purist", I don't need WWW interface..., so I may switch to pure buildroot, if I find the "solution"]

[same question on OpenWRT forum is still w/o response... :( ]

[BTW, anyone interested in serial(USB maybe) IR transceiver? based on ATMega328P, LIRC compatible] - working with ANY serial (including USB->serial dongles)

W.P.

Arnout Vandecappelle

2013-02-19 21:28 UTC #1 lore raw

Quoted 14 lines · W.P.

Hi there,
I have following setup:
router with USB - TP-LINK MR-3220,
USB 2.0 hub,
CSR BT USB dongle plugged to hub,
"USB audio card" plugged to the same hub.
I use (successfully) this "card" to play internet radio (wget | madplay).
Now I want to enable this router to act as HF (stereo, A2DP?) device over Bluetooth.
What modules (programs) I need,
and most important:how to configure it?

Quoted 5 lines

Current software is OpenWRT trunk 33310, compiled at home. [I am not "purist", I don't need WWW interface..., so I may switch to pure buildroot, if I find the "solution"]
[same question on OpenWRT forum is still w/o response... :( ]

I guess you may have more success on a bluetooth mailing list...
Perhaps start with looking at the bleuz_utils documentation.

Regards,
Arnout

Quoted 11 lines

[BTW, anyone interested in serial(USB maybe) IR transceiver? based on ATMega328P, LIRC compatible] - working with ANY serial (including USB->serial dongles)
W.P.
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Signature · 6 lines

Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
Essensium/Mind                                http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium           BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint:  7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F

W.P.

author

2013-02-19 23:16 UTC #2 lore raw

U?ytkownik Arnout Vandecappelle napisa?:

Quoted 15 lines · W.P.

Quoted 14 lines
Hi there,
I have following setup:
router with USB - TP-LINK MR-3220,
USB 2.0 hub,
CSR BT USB dongle plugged to hub,
"USB audio card" plugged to the same hub.
I use (successfully) this "card" to play internet radio (wget | madplay).
Now I want to enable this router to act as HF (stereo, A2DP?) device over Bluetooth.
What modules (programs) I need,
and most important:how to configure it?

Quoted 8 lines

Quoted 5 lines
Current software is OpenWRT trunk 33310, compiled at home. [I am not "purist", I don't need WWW interface..., so I may switch to pure buildroot, if I find the "solution"]
[same question on OpenWRT forum is still w/o response... :( ]
I guess you may have more success on a bluetooth mailing list...
Perhaps start with looking at the bleuz_utils documentation.

I am not a (Linux) programmer :(, I'll try the list.

A little bit of progress:
I have managed to compile "2years old" "nohands" software, tweaking "libhfp" Makefile with CPPFLAGS = -f permissive and "tests" Makefile with LDFLAGS = -lpthreads

After doing (suggested by software) hciconfig hci0 scomtu 64:8 (as root), application (and daemon) hfconsole started, I could search my phone (SE X8, Android one), and connect.
Even place / answer calls, but ONLY on headset audio.

When I tried to switch to "speaker" I got total system FREEZE. (repeatable).

I am now guessing if it is related to BT or Alsa audio... (no Pulse support in this soft, Alsa and OSS only).

And audio (at least output) looks working good on this machine - I can play music /movies.

Would a test with external USB "sound card" give some relevant information?

W.P.

[BTW, Arnout: I am trying to do something in Your "domain" - embedded :) ].

Quoted 17 lines

Regards,
Arnout
Quoted 11 lines
[BTW, anyone interested in serial(USB maybe) IR transceiver? based on ATMega328P, LIRC compatible] - working with ANY serial (including USB->serial dongles)
W.P.
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