[SOLVED] Bluetooth controls dist kernel vs custom kernel

__name__ · Last edited by __name__ on Mon Jul 08, 2024 7:57 pm; edited 1 time in total

I have Bose Bluetooth speakers that with the dist kernel I can pause video playback with the button on the speaker however with the custom kernel I have configured I cannot pause playback but I can control the volume. Is there a module that I am missing in the custom config that the dist kernel is using to allow the bluetooth speaker to have the ability to pause video playback?

logrusx · Advocate Joined: 22 Feb 2018 Posts: 2435

__name__ · Posted: Mon Jun 17, 2024 6:47 pm Post subject:

I believe you are correct about rfcomm as that was a difference I had noticed in the lsmod outputs and the bluetooth wiki mentions it as well. I'm just not sure which kernel option enables that. I used make xconfig and searched for it however the options that search found were enabled.

My custom kernel lsmod output:

logrusx · Advocate Joined: 22 Feb 2018 Posts: 2435

I don't know about xconfig, but in menuconfig it is / then type in something and it'll find everything containing it.

In your case it's Networking -> Bluetooth

Best Regards,
Georgi

p.s. you don't need all the bluetooth drivers. You have intel, bcm, mtk, rtl. Only one of them is your driver. It looks like intel is the only loaded wifi driver, so I guess you need bt_intel only.

__name__ · Posted: Mon Jun 17, 2024 7:33 pm Post subject:

Thanks for the help.

Both options that come up when I search RFCOMM in menuconfig are set to y

I'm lost at this point...

pietinger · Posted: Mon Jun 17, 2024 8:06 pm Post subject:

__name__ · Posted: Mon Jun 17, 2024 8:24 pm Post subject:

__name__ · Posted: Mon Jun 17, 2024 8:30 pm Post subject:

Just checked and bnep is enabled but I see that CONFIG_BT_HCIUART_BCSP was not enabled in my kernel so I am trying that now.

__name__ · Posted: Mon Jun 17, 2024 8:36 pm Post subject:

So enabling BCSP didn't make a difference.

Do you know the CONFIG_ symbol for the microsoft extensions?

pietinger · Posted: Mon Jun 17, 2024 10:23 pm Post subject:

__name__ · Posted: Wed Jun 19, 2024 6:07 pm Post subject:

I never edit the .config directly I usually use nconfig or xconfig. The search function in nconfig uses the CONFIG_ symbol.

I am not seeing the Microsoft extensions option in any of the config menus.

Here is the diffconfig output

https://pastebin.com/S1L15kfT

logrusx · Advocate Joined: 22 Feb 2018 Posts: 2435

You've statically compiled in the drivers into the kernel.

What's the output of

logrusx · Advocate Joined: 22 Feb 2018 Posts: 2435

pietinger · Posted: Wed Jun 19, 2024 7:19 pm Post subject:

__name__ · Posted: Wed Jun 19, 2024 10:17 pm Post subject:

I am using kernel 6.6.30

So I checked make menuconfig again and the Microsoft Extensions option is enabled.

pietinger · Posted: Wed Jun 19, 2024 11:09 pm Post subject:

__name__ · Posted: Thu Jun 20, 2024 12:18 am Post subject:

pietinger · Posted: Thu Jun 20, 2024 1:01 am Post subject:

__name__ · Posted: Thu Jun 20, 2024 1:32 am Post subject:

Still no luck with those options enabled.

__name__ · Posted: Thu Jun 20, 2024 1:35 am Post subject:

How does this happen if it is enabled in the .config?

logrusx · Advocate Joined: 22 Feb 2018 Posts: 2435

__name__ · Posted: Thu Jun 20, 2024 5:25 am Post subject:

__name__ · Posted: Thu Jun 20, 2024 7:16 am Post subject:

It was the uinput option!!! Thanks so much! I am removing other options and testing to verify that is the only requirement, I will report my findings.

Thanks again.

logrusx · Advocate Joined: 22 Feb 2018 Posts: 2435

pietinger · Posted: Thu Jun 20, 2024 12:21 pm Post subject: