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authorLinus Torvalds <torvalds@linux-foundation.org>2025-05-27 21:22:19 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2025-05-27 21:22:19 +0300
commit3e443d167327b10966166c1953631936547b03d0 (patch)
tree458a10e2afcbce3f73292c6ca13b06ea9f48a94c /Documentation/userspace-api/ioctl
parent95bf3760eb9ceeb93febdc280695347b1e0a89c1 (diff)
parentd6d886005d32e4380cee3d1095908875505ac2c6 (diff)
downloadlinux-3e443d167327b10966166c1953631936547b03d0.tar.xz
Merge tag 'docs-6.16' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet: "A moderately busy cycle for documentation this time around: - The most significant change is the replacement of the old kernel-doc script (a monstrous collection of Perl regexes that predates the Git era) with a Python reimplementation. That, too, is a horrifying collection of regexes, but in a much cleaner and more maintainable structure that integrates far better with the Sphinx build system. This change has been in linux-next for the full 6.15 cycle; the small number of problems that turned up have been addressed, seemingly to everybody's satisfaction. The Perl kernel-doc script remains in tree (as scripts/kernel-doc.pl) and can be used with a command-line option if need be. Unless some reason to keep it around materializes, it will probably go away in 6.17. Credit goes to Mauro Carvalho Chehab for doing all this work. - Some RTLA documentation updates - A handful of Chinese translations - The usual collection of typo fixes, general updates, etc" * tag 'docs-6.16' of git://git.lwn.net/linux: (85 commits) Docs: doc-guide: update sphinx.rst Sphinx version number docs: doc-guide: clarify latest theme usage Documentation/scheduler: Fix typo in sched-stats domain field description scripts: kernel-doc: prevent a KeyError when checking output docs: kerneldoc.py: simplify exception handling logic MAINTAINERS: update linux-doc entry to cover new Python scripts docs: align with scripts/syscall.tbl migration Documentation: NTB: Fix typo Documentation: ioctl-number: Update table intro docs: conf.py: drop backward support for old Sphinx versions Docs: driver-api/basics: add kobject_event interfaces Docs: relay: editing cleanups docs: fix "incase" typo in coresight/panic.rst Fix spelling error for 'parallel' docs: admin-guide: fix typos in reporting-issues.rst docs: dmaengine: add explanation for DMA_ASYNC_TX capability Documentation: leds: improve readibility of multicolor doc docs: fix typo in firmware-related section docs: Makefile: Inherit PYTHONPYCACHEPREFIX setting as env variable Documentation: ioctl-number: Update outdated submission info ...
Diffstat (limited to 'Documentation/userspace-api/ioctl')
-rw-r--r--Documentation/userspace-api/ioctl/ioctl-number.rst13
1 files changed, 6 insertions, 7 deletions
diff --git a/Documentation/userspace-api/ioctl/ioctl-number.rst b/Documentation/userspace-api/ioctl/ioctl-number.rst
index fee5c4731501..3d1171fd96c1 100644
--- a/Documentation/userspace-api/ioctl/ioctl-number.rst
+++ b/Documentation/userspace-api/ioctl/ioctl-number.rst
@@ -28,10 +28,10 @@ or number from the table below. Because of the large number of drivers,
many drivers share a partial letter with other drivers.
If you are writing a driver for a new device and need a letter, pick an
-unused block with enough room for expansion: 32 to 256 ioctl commands.
-You can register the block by patching this file and submitting the
-patch to Linus Torvalds. Or you can e-mail me at <mec@shout.net> and
-I'll register one for you.
+unused block with enough room for expansion: 32 to 256 ioctl commands
+should suffice. You can register the block by patching this file and
+submitting the patch through :doc:`usual patch submission process
+</process/submitting-patches>`.
The second argument to _IO, _IOW, _IOR, or _IOWR is a sequence number
to distinguish ioctls from each other. The third argument to _IOW,
@@ -62,9 +62,8 @@ Following this convention is good because:
(5) When following the convention, the driver code can use generic
code to copy the parameters between user and kernel space.
-This table lists ioctls visible from user land for Linux/x86. It contains
-most drivers up to 2.6.31, but I know I am missing some. There has been
-no attempt to list non-X86 architectures or ioctls from drivers/staging/.
+This table lists ioctls visible from userland, excluding ones from
+drivers/staging/.
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