Subject: Re: operation not supported ...
To: None <cgd@nobozo.CS.Berkeley.EDU>
From: Paul Kranenburg <>
List: tech-kern
Date: 12/20/1993 10:37:52
> which places?  that makes a difference; if they *can* be converted

There's kernfs and fdesc which use it rather frequently. In my opinion,
ENODEV would do as well in these cases.

There are also a few isolated cases in the sparc port.

In vm_mmap.c, it's returned by a few unimplemented system calls. I would
think ENOSYS is appropriate here.