What is an error -22 ??

[Sean Bruno]

On Wed, 2006-12-20 at 13:14 +0200, Gilboa Davara wrote:
> On Tue, 2006-12-19 at 23:05 -0500, William Case wrote:
> > Hi;
> > 
> > I am getting the following line in dmesg:
> > 
> > "bt878: probe of 0000.02:0d.1 failed with error -22"
> > 
> > I am trying to get my ATI TV Wonder VE TV tuner card to work with a
> > newly installed ATI Radeon 9600 video card.  Lots of problems; the main
> > one beeing that TV window intermittently but frequently gives a 'no
> > signal' warning. 
> > 
> > What is error -22?  Where can I find a list of error messages that might
> > appear in my log(s)?
> > 
> > I am using the bttv driver, tvtimes and tuner=2 option.  I right now I
> > am trying *all* tuner options, but so far no hint of any luck.
> > 
> > 
> > -- 
> > Regards Bill
> > 
> 
> Kernel modules return negative error codes.
> Error -22 is -EINVAL. or "Invalid argument".
> Mostly likely something is broken within the bttv driver.
> I'd suggest you file a bug report in the bugzilla.
> 
> - Gilboa
> 
Thanks, I had no idea that kernel modules would return negative error
codes.

So, is it permissible to use the header
files /usr/include/asm-generic/errno.h
and /usr/include/asm-generic/errno-base.h to determine the error code by
just changing the sign of the return value in this case?

Sean