I've downloaded the source for Linux device driver from the manufacturer's website. The source was included in a zip file, so no source control was involved. Unfortunately, the driver source was grossly out of date, so I have been working on porting it to more modern kernel versions.
The source files all seem to include a header at the top denoting a GPLv2 license as follows:
/******************************************************************************
*
* Copyright(c) 2007 - 2012 ACME Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
*
******************************************************************************/
I cannot, find anywhere in the files I downloaded, a copy of any sort of license. Could there be any issue, with me redistributing my modified version of this source code because of the lack of a license? There are other files, firmware binaries, etc. that I am unsure of the licensing terms for and don't know if those can be distributed either. Do I need to write said address in header?
COPYING
orLICENSE
.