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Filename Latest commit message Latest commit date
Łukasz Bartosik 3f39d58a0c USB: quirks: add quirk for Focusrite Scarlett
commit 9dc162e22387080e2d06de708b89920c0e158c9a upstream.

The Focusrite Scarlett audio device does not behave correctly during
resumes. Below is what happens during every resume (captured with
Beagle 5000):

<Suspend>
<Resume>
<Reset>/<Chirp J>/<Tiny J>
<Reset/Target disconnected>
<High Speed>

The Scarlett disconnects and is enumerated again.

However from time to time it drops completely off the USB bus during
resume. Below is captured occurrence of such an event:

<Suspend>
<Resume>
<Reset>/<Chirp J>/<Tiny J>
<Reset>/<Chirp K>/<Tiny K>
<High Speed>
<Corrupted packet>
<Reset/Target disconnected>

To fix the condition a user has to unplug and plug the device again.

With USB_QUIRK_RESET_RESUME applied ("usbcore.quirks=1235:8211:b")
for the Scarlett audio device the issue still reproduces.

Applying USB_QUIRK_DISCONNECT_SUSPEND ("usbcore.quirks=1235:8211:m")
fixed the issue and the Scarlett audio device didn't drop off the USB
bus for ~5000 suspend/resume cycles where originally issue reproduced in
~100 or less suspend/resume cycles.

Signed-off-by: Łukasz Bartosik <lb@semihalf.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20230724112911.1802577-1-lb@semihalf.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-11 11:53:51 +02:00
arch x86: fix backwards merge of GDS/SRSO bit 2023-08-08 19:56:37 +02:00
block block/partition: fix signedness issue for Amiga partitions 2023-07-27 08:37:29 +02:00
certs
crypto
Documentation Documentation/x86: Fix backwards on/off logic about YMM support 2023-08-08 19:56:36 +02:00
drivers USB: quirks: add quirk for Focusrite Scarlett 2023-08-11 11:53:51 +02:00
fs ext4: fix to check return value of freeze_bdev() in ext4_shutdown() 2023-08-11 11:53:47 +02:00
include block: Fix a source code comment in include/uapi/linux/blkzoned.h 2023-08-11 11:53:49 +02:00
init x86/mm: Initialize text poking earlier 2023-08-08 19:56:36 +02:00
ipc
kernel tracing: Fix warning in trace_buffered_event_disable() 2023-08-11 11:53:50 +02:00
lib debugobjects: Recheck debug_objects_enabled before reporting 2023-07-27 08:37:41 +02:00
LICENSES
mm
net net/sched: mqprio: Add length check for TCA_MQPRIO_{MAX/MIN}_RATE64 2023-08-11 11:53:48 +02:00
samples
scripts modpost: fix off by one in is_executable_section() 2023-07-27 08:37:18 +02:00
security keys: Fix linking a duplicate key to a keyring's assoc_array 2023-08-11 11:53:47 +02:00
sound ASoC: fsl_spdif: Silence output on stop 2023-08-11 11:53:49 +02:00
tools x86/bugs: Increase the x86 bugs vector size to two u32s 2023-08-08 19:56:37 +02:00
usr
virt
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.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
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Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.252 2023-08-08 19:56:37 +02:00
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 Restructured Text 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.