On Wed, 2014-10-08 at 22:50 -0300, Mauro Carvalho Chehab wrote:
> Em Wed, 08 Oct 2014 13:53:33 -0700
> Randy Dunlap <rdunlap@xxxxxxxxxxxxx> escreveu:
> > On 10/08/14 11:31, Mauro Carvalho Chehab wrote:
> > > From gpsca's PoV, IMHO, it should be fine to disable the webcam buttons if
> > > the webcam was compiled as builtin and the input subsystem is compiled as
> > > module. The core feature expected on a camera is to capture streams.
> > > Buttons are just a plus.
> > >
> > > Also, most cams don't even have buttons. The gspca subdriver has support
> > > for buttons for the few models that have it.
> > >
> > > So, IMHO, it should be ok to have GSPCA=y and INPUT=m, provided that
> > > the buttons will be disabled.
> >
> > Then all of the sub-drivers that use IS_ENABLED(CONFIG_INPUT) should be
> > changed to use IS_BUILTIN(CONFIG_INPUT).
> >
> > But that is too restrictive IMO. The input subsystem will work fine when
> > CONFIG_INPUT=m and the GSPCA drivers are also loadable modules.
>
> Agreed.
>
> Maybe the solution would be something more complex like
> (for drivers/media/usb/gspca/zc3xx.c):
>
> #if (IS_BUILTIN(CONFIG_INPUT)) || (IS_ENABLED(CONFIG_INPUT) && !IS_BUILTIN(CONFIG_USB_GSPCA_ZC3XX))
The above discussion meanders a bit, and I just stumbled onto it, but
would
#if IS_BUILTIN(CONFIG_INPUT) || (IS_MODULE(CONFIG_INPUT) && defined(MODULE))
cover your requirements when using macros?
> Probably the best would be to write another macro that would evaluate
> like the above.
Paul Bolle
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