linux-kernel - Re: users of drivers/misc/echo ?

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Message-Id: <71af20fc-ed19-4bda-af61-f6061fd1422b@app.fastmail.com>
Date: Tue, 25 Feb 2025 20:02:36 +0100
From: "Arnd Bergmann" <arnd@...db.de>
To: linux <linux@...blig.org>, "Harald Welte" <laforge@...monks.org>
Cc: "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
 linux-kernel@...r.kernel.org, david@...etel.com
Subject: Re: users of drivers/misc/echo ?

On Tue, Feb 25, 2025, at 19:39, Dr. David Alan Gilbert wrote:
> * Harald Welte (laforge@...monks.org) wrote:

>
> It looks like Debian is including and enabling it in it's DKMS build:
>
> # apt install dahdi-dkms
> ...
> dahdi_echocan_oslec.ko:
> Running module version sanity check.
>  - Original module
>    - No original module exists within this kernel
>  - Installation
>    - Installing to /lib/modules/6.1.0-31-amd64/updates/dkms/
> ...
> # nm /lib/modules/6.1.0-31-amd64/updates/dkms/dahdi_echocan_oslec.ko
> ...
>                  U oslec_create
>                  U oslec_free
>                  U oslec_update
> ...

I took a look at the debian sources in
https://salsa.debian.org/pkg-voip-team/dahdi-linux/

Apparently the 'dahdi-linux' package contains a copy of
the oslec module, which it puts in a local drivers/staging/echo
directory.

It has done so since at least 2015 when the package moved
from subversion to git.

      Arnd