Hi,

On Tue, Feb 19, 2013 at 11:14:40AM -0300, Mauro Carvalho Chehab wrote:
> > Please consider adding a default attribute which return '-EINVAL' or 
> > somesuch when the function pointers are not set.
> > But _not_ adding it via device_create_file(). That's evil.
> 
> This thread started with Felipe's complain about it returning -ENOSYS ;)
> when this feature is not supported.

I was complaining about a file with read permission not being really
readable which is a fair bug IMHO.

-- 
balbi