[PATCH libevdev 2/2] Add a file to define missing bits for older kernels

[Peter Hutterer]

On Tue, Oct 08, 2013 at 10:03:11AM -0400, Gaetan Nadon wrote:
> On 13-10-08 12:58 AM, Peter Hutterer wrote:
> > This is a very simple patch for now, adding more bits gets complicated
> > really quickly. So let's just add the most recent bits for now.
> >
> > CC: Gaetan Nadon <memsize at videotron.ca>
> > Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
> > ---
> > I've got a larger patchset that enables a lot more bits including RHEL6 support but
> > I think for now we should just enable the most recent additions. It gets complicated
> > really quickly otherwise and until we actually start shipping libevdev on RHEL6 we
> > don't need to worry about more.
> 
>     /home/nadon/xorg/src/libevdev/.git/rebase-apply/patch:73: new blank
>     line at EOF.
>     +
>     warning: 1 line adds whitespace errors.
> 
> 
>       CCLD   libevdev-events
>     ../libevdev/.libs/libevdev.so: undefined reference to `EVIOCGMTSLOTS'
>     collect2: ld returned 1 exit status
>     make[2]: *** [libevdev-events] Error 1

yikes. I was hoping that wasn't the case because handling that one would
require some more complicated bits. ok, let's ignore this patchset for now,
I'll spin the one with the more involved bits once I figure out how to test
for all permutations.

for the archives: the difficult bit isn't to build on a kernel not
supporting this, but to _run_ on such a kernel when built with support for
the ioctl. 

Gaetan, can you copy the #define below into your local libevdev-defines.h
and tell me what else is missing on your kernel?

#define EVIOCGMTSLOTS(len)      _IOC(_IOC_READ, 'E', 0x0a, len)

Cheers,
   Peter
> 
> 
> Workstation:
> Linux memsize 3.2.0-54-generic #82-Ubuntu SMP Tue Sep 10 20:08:42 UTC
> 2013 x86_64 x86_64 x86_64 GNU/Linux
>