Followup to: <Pine.GSO.email@example.com>
By author: Alexander Viro <firstname.lastname@example.org>
In newsgroup: linux.dev.kernel
> * it's _not_ a character device - stat() will give you S_IFREG.
> To check that <foo> is a new-style raw device call statfs(2) and
> compare .f_type with rawfs magic (0x726177). It doesn't conflict
> with existing check for raw devices (stat(), check that it's
> a character device and compare major with RAW_MAJOR), so existing
> software can be taught to check for raw devices in
> backwards-compatible way.
I really don't know if it's a good idea for this to be S_IFREG, which
software has a reasonable expecation to behave like a normal file,
which a raw device *definitely* doesn't.
I would really like things like this as well as a lot of the
zero-length magic files in /proc to be S_ISCHR with i_rdev ==
MK_DEV(0,0) (the latter to let user space know that this isn't a
standard device node.)
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This archive was generated by hypermail 2b29 : Tue May 07 2002 - 22:00:11 EST