linux-kernel - [PATCH v2 0/3] Document Media Controller IOCTL number assignments

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Message-Id: <20250527055648.503884-1-sakari.ailus@linux.intel.com>
Date: Tue, 27 May 2025 08:56:45 +0300
From: Sakari Ailus <sakari.ailus@...ux.intel.com>
To: linux-doc@...r.kernel.org
Cc: Jonathan Corbet <corbet@....net>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Madhavan Srinivasan <maddy@...ux.ibm.com>,
	Haren Myneni <haren@...ux.ibm.com>,
	Bagas Sanjaya <bagasdotme@...il.com>,
	Andrew Donnellan <ajd@...ux.ibm.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Akshay Gupta <akshay.gupta@....com>,
	linux-kernel@...r.kernel.org,
	linux-media@...r.kernel.org,
	hans@...erkuil.nl,
	laurent.pinchart@...asonboard.com,
	Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
	Lee Jones <lee@...nel.org>
Subject: [PATCH v2 0/3] Document Media Controller IOCTL number assignments

Hello all,

The Media Controller uses IOCTL numbers with '|' type up to 0x81 but the
range from 0x80 upwards is documented to belong to samples. The samples,
however, are currently using these values. Solve the problem by bumping
the top of the MC range and the samples allocation by 0x10 as the samples
don't require a stable IOCTL interface.

since v1:

- Improved the commit message in the first patch.

- Added a patch to change the IOCTLs also in the Rust sample.

Sakari Ailus (3):
  Documentation: Bump media IOCTL reserved numbers
  media: uapi: Document IOCTL number assignment
  samples: rust_misc_device: Bump IOCTL numbers

 Documentation/userspace-api/ioctl/ioctl-number.rst |  4 ++--
 include/uapi/linux/media.h                         |  4 ++++
 samples/rust/rust_misc_device.rs                   | 14 +++++++-------
 3 files changed, 13 insertions(+), 9 deletions(-)

-- 
2.39.5