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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-09-05 11:59:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-09-05 11:59:05 -0700 |
| commit | 9f0346dcbea363787186c94ef94dd01aaa215afa (patch) | |
| tree | b81c168f4d0dbe4c7f4750f4598d48a6deb72094 /Documentation/driver-api/wmi.rst | |
| download | linux-stable-9f0346dcbea363787186c94ef94dd01aaa215afa.tar.gz linux-stable-9f0346dcbea363787186c94ef94dd01aaa215afa.zip | |
Merge tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-coregrafted
Pull driver core fixes from Danilo Krummrich:
- Fix kernfs listxattr() not returning security xattr names (e.g.
SELinux labels) when the kernfs node has no allocated kernfs_iattrs
- Fix silent truncation of IRQ vector indices in the Rust PCI
abstractions
- Don't select OF from DRIVER_PE_KUNIT_TEST; skip the test when OF is
disabled instead of silently enabling extra kernel functionality
- Russ Weight is retiring from kernel development; update the Firmware
Loader sysfs contact to the driver-core mailing list, add a CREDITS
entry for Firmware Upload, and update MAINTAINERS accordingly
* tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
MAINTAINERS: Remove Russ Weight from Firmware Loader
CREDITS: Add CREDITS entry for Firmware Upload
firmware_loader: Change contact for sysfs nodes
rust: pci: reject IRQ vector indices that do not fit in u32
kernfs: preserve security xattrs without allocating iattrs
drivers: base: test: DRIVER_PE_KUNIT_TEST should not select OF
Diffstat (limited to 'Documentation/driver-api/wmi.rst')
| -rw-r--r-- | Documentation/driver-api/wmi.rst | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/driver-api/wmi.rst b/Documentation/driver-api/wmi.rst new file mode 100644 index 000000000..b847bcdcb --- /dev/null +++ b/Documentation/driver-api/wmi.rst @@ -0,0 +1,23 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +============== +WMI Driver API +============== + +The WMI driver core supports a more modern bus-based interface for interacting +with WMI devices, and an older GUID-based interface. The latter interface is +considered to be deprecated, so new WMI drivers should generally avoid it since +it has some issues with multiple WMI devices sharing the same GUID. +The modern bus-based interface instead maps each WMI device to a +:c:type:`struct wmi_device <wmi_device>`, so it supports WMI devices sharing the +same GUID. Drivers can then register a :c:type:`struct wmi_driver <wmi_driver>` +which will be bound to compatible WMI devices by the driver core. + +.. kernel-doc:: include/linux/wmi.h + :internal: + +.. kernel-doc:: drivers/platform/wmi/string.c + :export: + +.. kernel-doc:: drivers/platform/wmi/core.c + :export: |
