lkml.org 
[lkml]   [2000]   [Sep]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subject[RFC] ioctl(2) return value

In ALSA we use the return value from ioctl as a simple way to return a
positive number to user space (if the return value is less than 0 we got
error, of course)

We got the doubt that this break some unknown standards or some linux
conventions or Linus taste (at a first glance I'm unable to find
precedents inside kernel tree).

I've looked Singe UNIX Specification, Version 2 and there this seems
perfectly acceptable.

I'd like very much to have some feedback to do the RightThing (tm).

The alternative of course would be to add a result field inside struct
passed by pointer to ioctl call.

--
Abramo Bagnara mailto:abramo@alsa-project.org

Opera Unica
Via Emilia Interna, 140 Phone: +39.0546.656023
48014 Castel Bolognese (RA) - Italy Fax: +39.0546.656023

ALSA project is http://www.alsa-project.org
sponsored by SuSE Linux http://www.suse.com

It sounds good!
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:39    [from the cache]
©2003-2011 Jasper Spaans