From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: linux-doc@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Haren Myneni <haren@linux.ibm.com>,
Bagas Sanjaya <bagasdotme@gmail.com>,
Andrew Donnellan <ajd@linux.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Akshay Gupta <akshay.gupta@amd.com>,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
hans@jjverkuil.nl, laurent.pinchart@ideasonboard.com,
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
Lee Jones <lee@kernel.org>
Subject: [PATCH v2 2/3] media: uapi: Document IOCTL number assignment
Date: Tue, 27 May 2025 08:56:47 +0300 [thread overview]
Message-ID: <20250527055648.503884-3-sakari.ailus@linux.intel.com> (raw)
In-Reply-To: <20250527055648.503884-1-sakari.ailus@linux.intel.com>
Document MC IOCTL number assignment in linux/media.h. In the past the
assignment up to 0x7f was missed so to prevent that from happening again,
document the value here as well.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
include/uapi/linux/media.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h
index 1c80b1d6bbaf..2808132fcf49 100644
--- a/include/uapi/linux/media.h
+++ b/include/uapi/linux/media.h
@@ -381,6 +381,10 @@ struct media_v2_topology {
*/
#define MEDIA_REQUEST_IOC_QUEUE _IO('|', 0x80)
#define MEDIA_REQUEST_IOC_REINIT _IO('|', 0x81)
+/*
+ * Don't allocate new IOCTL numbers past 0x8f, MC IOCTL number assignment ends
+ * there!
+ */
#ifndef __KERNEL__
--
2.39.5
next prev parent reply other threads:[~2025-05-27 5:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-27 5:56 [PATCH v2 0/3] Document Media Controller IOCTL number assignments Sakari Ailus
2025-05-27 5:56 ` [PATCH v2 1/3] Documentation: Bump media IOCTL reserved numbers Sakari Ailus
2025-05-27 5:56 ` Sakari Ailus [this message]
2025-05-27 5:56 ` [PATCH v2 3/3] samples: rust_misc_device: Bump IOCTL numbers Sakari Ailus
2025-09-05 10:25 ` [PATCH v2 0/3] Document Media Controller IOCTL number assignments Sakari Ailus
2025-09-05 10:32 ` Greg Kroah-Hartman
2025-09-05 11:02 ` Sakari Ailus
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