Messages in this thread |  | | Date | Thu, 21 Sep 2000 11:43:07 +0200 | From | Abramo Bagnara <> | 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/
|  |