where do I find version.h

Ian D · 11-24-2017, 07:48 AM

I am trying to install Quick Cam Video Driver - which involves running make.

Make check that it can find /lib/modules/4.13.13-200.fc26.x86_64/build/include/linux/version.h - but that file is not on my system.

What do I need to install to get that file?

////// · 11-24-2017, 08:24 AM

my wild guess is that you need to install ...

Code:

kernel-devel.x86_64

that is the first thing i install when making kernel modules.

hazel · 11-24-2017, 11:13 AM

There should be a file of that name in /usr/include/linux. If not, the package suggested by ///// sounds like a reasonable source.

knudfl · 11-24-2017, 11:50 AM

/lib/modules/4.13.13-200.fc26.x86_64/build/include/linux/version.h :
... Used to be present in earlier kernels.

You can try with another "version.h" e.g. include/generated/uapi/linux/version.h
( But I don't remember if it works for a module build meant for an older kernel.)

-

Ian D · 11-24-2017, 01:09 PM

I have searched the file system and I can see that there are a number of different files called version.h

In subdirectories of /lib/modules/4.13.13-200.fc26.x86_64/build/include/ I can see some that are 0 bytes, some that are 97 bytes, some that are 1.0 kB and one that is 2.1 kB.

A 97 byte one reads

Quote:

#define LINUX_VERSION_CODE 265484
#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))

A 1.0 kb one reads

Quote:

/*
* version.h
*
* Copyright (C) 2000 Holger Waechtler <holger@convergence.de>
* for convergence integrated media GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* 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 Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/

#ifndef _DVBVERSION_H_
#define _DVBVERSION_H_

#define DVB_API_VERSION 5
#define DVB_API_VERSION_MINOR 10

#endif /*_DVBVERSION_H_*/

Any ideas which one I should copy?

AwesomeMachine · 11-26-2017, 04:14 AM

The thing is you need the correct version.h in the correct location. If you're really using fedora 9, it might be tough to get the right one.

Ian D · 11-26-2017, 11:08 AM

Thanks Awesome Machine. I have now updated my profile - I am on Fedora 26!

I have tried copying the 97 byte version and the make did not complain - but I'm not sure that it did anything either. I am trying to work out whether it created any file(s) - or was just telling me that I ought to have called it differently.

knudfl · 11-26-2017, 02:08 PM

Re #7 : include/generated/uapi/linux/version.h

Code:

#define LINUX_VERSION_CODE 264968
#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))

The file is totally harmless. If used at all, it's for a version check only.