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From: Marcel Holtmann <marcel@holtmann.org>
To: "Pali Rohár" <pali.rohar@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>,
	Luiz Augusto von Dentz <luiz.dentz@gmail.com>,
	"linux-bluetooth@vger.kernel.org"
	<linux-bluetooth@vger.kernel.org>,
	Johan Hedberg <johan.hedberg@gmail.com>
Subject: Re: HCI Set custom bandwidth for AuriStream SCO codec
Date: Sat, 6 Jul 2019 15:45:03 +0200	[thread overview]
Message-ID: <ED456CCA-CF85-48D9-B7E9-9B0BF02A32FC@holtmann.org> (raw)
In-Reply-To: <20190607130245.mv4ch6dxnuptzdki@pali>

Hi Pali,

>>>>> to be honest, I would rather see WBS implementation finally
>>>>> reach PA before we start digging into this.
>>>> 
>>>> First I want to finish improving A2DP codec support in pulseaudio. Later
>>>> I can look at HSP/HFP profiles. Ideally it should have modular/plugin
>>>> extensible design. So the aim is that adding new codec would be very
>>>> simple, without need to hack something related to mSBC/WBC, AuriStream
>>>> or any other codec.
>>> 
>>> Well HSP don't have support for codec negotiation, but yes a modular
>>> design is probably recommended.
>>> 
>>>> But for AuriStream I need to set custom SCO parameters as described
>>>> below and currently kernel does not support it. This is why I'm asking
>>>> how kernel can export for userspace configuration of SCO parameters...
>>> 
>>> We can always come up with socket options but we got to see the value
>>> it would bring since AuriStream don't look that popular among
>>> headsets, at least Ive never seem any device advertising it like
>>> apt-X, etc.
>> 
>> Pali clearly has such device and he is willing to work on it. Surely
>> that means it is popular enough to be supported...?
> 
> Just put AT+CSRSF=0,0,0,0,0,7 to google search and you would see that
> not only I have such device...
> 
> So I would really would like to see that kernel finally stops blocking
> usage of this AuriStream codec.

we need to figure out on how we do the kernel API to allow you this specific setting. We have kept is really simple since there was only CVSD and mSBC as of now. I am also curious on what the assumptions are for the USB driver alternate settings are when using a different codec.

Regards

Marcel


  parent reply	other threads:[~2019-07-06 13:45 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-04 17:15 HCI Set custom bandwidth for AuriStream SCO codec Pali Rohár
2019-05-06 15:16 ` Pali Rohár
2019-05-16 18:34   ` Pali Rohár
2019-05-19  8:16     ` Luiz Augusto von Dentz
2019-05-19  8:23       ` Pali Rohár
2019-05-19  8:45         ` Luiz Augusto von Dentz
2019-05-19  8:54           ` Pali Rohár
2019-05-19 21:21           ` Pavel Machek
2019-06-07 13:02             ` Pali Rohár
2019-06-07 15:19               ` Luiz Augusto von Dentz
2019-07-06 13:45               ` Marcel Holtmann [this message]
2019-07-08 12:25                 ` Pali Rohár
2019-07-08 13:23                   ` Marcel Holtmann
2019-07-08 21:06                     ` Pali Rohár
2019-07-12 18:59                       ` Marcel Holtmann
2019-07-18 10:09                         ` Pali Rohár
2019-07-18 20:06                           ` Marcel Holtmann
2019-11-21 23:00                             ` Pali Rohár
2019-11-24 11:02                               ` Marcel Holtmann
2019-10-27 22:09                           ` Pali Rohár
2019-11-12 21:06                             ` Pavel Machek
2019-11-13  9:22                               ` Pali Rohár
2019-11-21 22:47                                 ` Pali Rohár
2019-11-19 17:04                             ` Marcel Holtmann
2019-11-19 17:13                               ` Pali Rohár
2019-11-19 23:47                                 ` Marcel Holtmann
2019-11-20  7:44                                   ` Pali Rohár
2019-11-21 22:44                                     ` Pali Rohár
2019-11-24 11:04                                       ` Marcel Holtmann
2019-11-24 11:13                                         ` Pali Rohár
2019-11-26  7:24                                           ` Marcel Holtmann
2019-11-26  7:46                                             ` Pali Rohár
2019-11-26  7:58                                               ` Marcel Holtmann
2019-11-26  8:00                                                 ` Pali Rohár
2019-11-26  9:41                                                   ` Luiz Augusto von Dentz
2019-11-26  9:58                                                     ` Pali Rohár
2019-12-05  9:28                                                       ` Pali Rohár
2019-12-11 14:40                                                         ` Pali Rohár
2020-01-04 10:04                                                         ` Marcel Holtmann
2020-01-04 10:37                                                           ` Pali Rohár
2020-02-09 12:59                                                             ` Pali Rohár
2020-02-19 12:09                                                           ` David Heidelberg
2020-04-19 23:49                                                             ` Bluetooth: Allow to use configure SCO socket codec parameters Pali Rohár
2020-04-20 23:54                                                               ` Luiz Augusto von Dentz
2020-04-21  8:53                                                                 ` Pali Rohár
2020-05-14 19:49                                                               ` Aleksandar Kostadinov
2020-05-15 22:46                                                                 ` Andrew Fuller
2020-05-15 23:08                                                                   ` Luiz Augusto von Dentz
2020-05-16  7:50                                                                     ` Aleksandar Kostadinov
2020-05-16  7:53                                                                     ` Pali Rohár
2020-05-18 16:43                                                                       ` Luiz Augusto von Dentz
2020-05-18 16:50                                                                         ` Pali Rohár
2020-05-27 12:18                                                                           ` Ujjwal Sharma
2020-05-27 15:48                                                                             ` Luiz Augusto von Dentz
2020-05-27 16:24                                                                               ` Ujjwal Sharma
2020-06-04 20:43                                                                                 ` Pali Rohár
2020-07-13 16:46                                                                                   ` Pasi Kärkkäinen
2020-09-29 21:04                                                                                   ` Pali Rohár
2020-10-26 11:45                                                                                     ` Joschi 127
2020-10-27 23:45                                                                                       ` Paul Stejskal
2020-10-28 20:25                                                                                       ` Joschi 127
2020-11-03 12:10                                                                                         ` Joschi 127
2020-11-03 12:18                                                                                           ` Pali Rohár
2020-11-03 12:43                                                                                   ` Jan-Philipp Litza
2020-11-04  0:37                                                                                     ` Luiz Augusto von Dentz

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