[Bug 294226] virtual_oss: cannot create dsp for bluetooth earphones - PSM not found

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 03 Apr 2026 09:03:34 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294226

            Bug ID: 294226
           Summary: virtual_oss: cannot create dsp for bluetooth earphones
                    - PSM not found
           Product: Base System
           Version: 15.0-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: quentin.thebault@defenso.fr

I have Philips TAT1300 earphones and am trying to connect them on a FreeBSD
15-STABLE laptop (last pkgbase upgrade today 2025-04-03).

I was able to pair them and can see them connected in hccontrol
read_connection_list.

I installed virtual_oss_bluetooth with pkg.

When I run virtual_oss -C 2 -c2 -r 48000 -s 4ms -d dsp_earphones -f
/dev/bluetooth/earphones the command keeps looping with the following output:

backend_bt: PSM=0xffffffff
backend_bt: PSM not found

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