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Bug#510780: closed by Ben Hutchings <ben@decadent.org.uk> (Re: linux-image-2.6.24-1-486: sound card YMF-724F, firmware request failed)



On Mon, 2009-10-26 at 14:18 +0100, Stefan Pofahl wrote:
> Hello Ben,
> 
> I don't know why, but I needed the link.
> > As you noted, soundcore was renamed to snd.  Nothing is missing and
> > there is no need to make a symbolic link.
> 
> I'm a greenhorn, so I don't know what is happening during kernel compilation,
> my impression is:
> During compilation not only the kernel sources are checked, but that it is
> also relevand on which machine or under which kernel you compile the
> new one.

It should not matter much, as long as you have a working compiler and
use the same processor architecture.  Please remove the section 'Check
the modules of your kernel' from
<http://www.jpberlin.de/st.pofahl/html/science-and-software/Gnu-Linux/alsa-sound.html> as it is bad advice.

> My soundcard works now, so I'm not interested to test, if the bug is still
> there.
> 
> Is there chance that the firmware for yamaha soundcards will be included
> in the kernel source or that there will be a firmware package in the
> debian distribution?
[...]

Most firmware that is distributed only in binary form can be packaged as
part of firmware-nonfree, but this depends on the exact terms of its
licence.

The documentation for firmware extracted from the Linux source
(firmware/WHENCE) says:

> Driver: ymfpci -- Yamaha YMF724/740/744/754 audio devices
> 
> File: yamaha/ds1_ctrl.fw
> File: yamaha/ds1_dsp.fw
> File: yamaha/ds1e_ctrl.fw
> 
> Licence: Unknown
> 
> Found alsa-firmware package in hex form, with the following comment:
>    Copyright (c) 1997-1999 Yamaha Corporation. All Rights Reserved.

Unfortunately this means we have no explicit permission to distribute.
It was presumably intended that the firmware could be distributed along
with the driver that loads it, but it's less clear that we can do so as
a separate package which is not officially part of the Debian system.
We have tried to reduce legal risk for Debian and its mirrors by
removing such firmware completely.

In some cases I have tried contacting copyright holders to get such
explicit permission but I have rarely been successful.  You are welcome
to help by searching for appropriate contacts at Yamaha and making such
a request.

Ben.

-- 
Ben Hutchings
I'm always amazed by the number of people who take up solipsism because
they heard someone else explain it. - E*Borg on alt.fan.pratchett

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