From: Philippe Gerum <rpm@xenomai.org>
To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Xenomai <xenomai@lists.linux.dev>
Subject: Re: O_OOB ABI
Date: Wed, 11 Nov 2026 18:32:27 +0100 [thread overview]
Message-ID: <87v76346l0.fsf@xenomai.org> (raw)
In-Reply-To: <18f772e8-118f-46f6-963a-58db46724e24@siemens.com> (Jan Kiszka's message of "Wed, 11 Nov 2026 13:18:38 +0100")
Jan Kiszka <jan.kiszka@siemens.com> writes:
> Hi Philippe,
>
> FYI. I assume this is an evl-only topic - if at all:
>
> "O_OOB changed from 010000000000 (1<<30) to (1 << 29) starting with the
> v7.2 port. That changes the userspace ABI compared with 6.18 and ≤7.1."
> (opus-5.5, while reviewing my 6.18 rebase)
>
Correct. Only the evl core enables the oob capability for regular
drivers, which userland may request by setting O_OOB in the open
flags. This is out of scope for cobalt.
--
Philippe.
next prev parent reply other threads:[~2026-11-11 17:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-11 12:18 O_OOB ABI Jan Kiszka
2026-11-11 17:32 ` Philippe Gerum [this message]
2026-11-11 17:41 ` Jan Kiszka
[not found] ` <875wy345kz.fsf@xenomai.org>
2026-11-11 17:55 ` Jan Kiszka
2026-11-11 18:17 ` Philippe Gerum
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