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Hans de Goede 36dcfa4685 HID: logitech-dj: Fix probe failure when used with KVM 
Since commit 6f20d32612 ("HID: logitech-dj: Fix error handling in
logi_dj_recv_switch_to_dj_mode()") logi_dj_recv_switch_to_dj_mode()
will return an error when the hid_hw_raw_request() call to enable
[dis]connect events fails.

This can happen when used with a KVM like the Aten CS1784a and the PC
does not have the KVM focus when probe() runs, which causes probe() to
fail after which the receiver will simply not work.

The logi_dj_recv_query_paired_devices() call done at the end of probe()
already ignores any errors for the KVM without focus case. When focus is
restored and an input report is received this will trigger
logi_dj_recv_queue_unknown_work() which retries the query_paired_devices()
call from a workqueue.

To fix the probe() failure let it ignore logi_dj_recv_switch_to_dj_mode()
errors too, track if a successful logi_dj_recv_switch_to_dj_mode() was
done and retry if necessary from logi_dj_recv_queue_unknown_work().

Queurying paired devices while not in dj-mode is not useful and this
will be redone after the unknown work has retried setting dj-mode,
so skip queurying paired devices when not in dj-mode yet.

The new bool to track successful setting of the dj-mode will also cause
setting dj-mode to be retried from the unknown work, if setting dj-mode
failed after a reset_resume.

Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
History 2025-11-26 16:16:34 +01:00
arch platform-drivers-x86 for v6.18-1 2025-10-04 15:28:18 -07:00
block Summary of significant series in this pull request: 2025-10-02 18:18:33 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto This update includes the following changes: 2025-10-04 14:59:29 -07:00
Documentation hid-for-linus-2025093001 2025-10-04 15:38:04 -07:00
drivers HID: logitech-dj: Fix probe failure when used with KVM 2025-11-26 16:16:34 +01:00
fs It has been a relatively busy cycle in docsland, with changes all over: 2025-10-03 17:16:13 -07:00
include HID: core: Add printk_ratelimited variants to hid_warn() etc 2025-10-14 11:57:40 +02:00
init printk changes for 6.18 2025-10-04 11:13:11 -07:00
io_uring Summary of significant series in this pull request: 2025-10-02 18:18:33 -07:00
ipc namespace-6.18-rc1 2025-09-29 11:20:29 -07:00
kernel This update includes the following changes: 2025-10-04 14:59:29 -07:00
lib This update includes the following changes: 2025-10-04 14:59:29 -07:00
LICENSES LICENSES: Replace the obsolete address of the FSF in the GFDL-1.2 2025-07-24 11:15:39 +02:00
mm mm/mm_init: simplify deferred initialization of struct pages 2025-10-04 11:03:10 -07:00
net NFS Client Updates for Linux 6.18 2025-10-03 14:20:40 -07:00
rust dma-mapping updates for Linux 6.18: 2025-10-03 17:41:12 -07:00
samples Summary of significant series in this pull request: 2025-10-02 18:18:33 -07:00
scripts It has been a relatively busy cycle in docsland, with changes all over: 2025-10-03 17:16:13 -07:00
security Hi, 2025-10-04 15:23:29 -07:00
sound platform-drivers-x86 for v6.18-1 2025-10-04 15:28:18 -07:00
tools selftests/hid: add tests for missing release on the Dell Synaptics 2025-10-15 17:27:06 +02:00
usr gen_init_cpio: add -a <data_align> as reflink optimization 2025-08-20 16:02:56 -07:00
virt KVM common changes for 6.18 2025-09-30 13:27:59 -04:00
.clang-format memblock: drop for_each_free_mem_pfn_range_in_zone_from() 2025-09-14 08:49:03 +03:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-07 00:11:47 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: remove Alyssa Rosenzweig 2025-09-18 21:17:31 +02:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore .gitignore: ignore compile_commands.json globally 2025-08-12 15:53:55 -07:00
.mailmap VFIO updates for v6.18-rc1 2025-10-04 08:24:54 -07:00
.pylintrc tools: docs: parse-headers.py: move it from sphinx dir 2025-08-29 15:54:42 -06:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Delete inactive maintainers from AF_XDP 2025-09-25 13:18:22 +02:00
Kbuild sched: Make migrate_{en,dis}able() inline 2025-09-25 09:57:16 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS platform-drivers-x86 for v6.18-1 2025-10-04 15:28:18 -07:00
Makefile It has been a relatively busy cycle in docsland, with changes all over: 2025-10-03 17:16:13 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.