<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/drivers/hid, branch v6.7-rc3</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>Merge tag 'for-linus-2023112301' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid</title>
<updated>2023-11-24T01:31:53+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2023-11-24T01:31:53+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=1f342790ad3c2456e15351829ad5d8919cccc03f'/>
<id>1f342790ad3c2456e15351829ad5d8919cccc03f</id>
<content type='text'>
Pull HID fixes from Jiri Kosina:

 - revert of commit that caused regression to many Logitech unifying
   receiver users (Jiri Kosina)

 - power management fix for hid-mcp2221 (Hamish Martin)

 - fix for race condition between HID core and HID debug (Charles Yi)

 - a couple of assorted device-ID-specific quirks

* tag 'for-linus-2023112301' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: multitouch: Add quirk for HONOR GLO-GXXX touchpad
  HID: hid-asus: reset the backlight brightness level on resume
  HID: hid-asus: add const to read-only outgoing usb buffer
  Revert "HID: logitech-dj: Add support for a new lightspeed receiver iteration"
  HID: add ALWAYS_POLL quirk for Apple kb
  HID: glorious: fix Glorious Model I HID report
  HID: fix HID device resource race between HID core and debugging support
  HID: apple: add Jamesdonkey and A3R to non-apple keyboards list
  HID: mcp2221: Allow IO to start during probe
  HID: mcp2221: Set driver data before I2C adapter add
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull HID fixes from Jiri Kosina:

 - revert of commit that caused regression to many Logitech unifying
   receiver users (Jiri Kosina)

 - power management fix for hid-mcp2221 (Hamish Martin)

 - fix for race condition between HID core and HID debug (Charles Yi)

 - a couple of assorted device-ID-specific quirks

* tag 'for-linus-2023112301' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: multitouch: Add quirk for HONOR GLO-GXXX touchpad
  HID: hid-asus: reset the backlight brightness level on resume
  HID: hid-asus: add const to read-only outgoing usb buffer
  Revert "HID: logitech-dj: Add support for a new lightspeed receiver iteration"
  HID: add ALWAYS_POLL quirk for Apple kb
  HID: glorious: fix Glorious Model I HID report
  HID: fix HID device resource race between HID core and debugging support
  HID: apple: add Jamesdonkey and A3R to non-apple keyboards list
  HID: mcp2221: Allow IO to start during probe
  HID: mcp2221: Set driver data before I2C adapter add
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: multitouch: Add quirk for HONOR GLO-GXXX touchpad</title>
<updated>2023-11-22T10:27:46+00:00</updated>
<author>
<name>Aoba K</name>
<email>nexp_0x17@outlook.com</email>
</author>
<published>2023-11-21T12:23:11+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=9ffccb691adb854e7b7f3ee57fbbda12ff70533f'/>
<id>9ffccb691adb854e7b7f3ee57fbbda12ff70533f</id>
<content type='text'>
Honor MagicBook 13 2023 has a touchpad which do not switch to the multitouch
mode until the input mode feature is written by the host.  The touchpad do
report the input mode at touchpad(3), while itself working under mouse mode. As
a workaround, it is possible to call MT_QUIRE_FORCE_GET_FEATURE to force set
feature in mt_set_input_mode for such device.

The touchpad reports as BLTP7853, which cannot retrive any useful manufacture
information on the internel by this string at present.  As the serial number of
the laptop is GLO-G52, while DMI info reports the laptop serial number as
GLO-GXXX, this workaround should applied to all models which has the GLO-GXXX.

Signed-off-by: Aoba K &lt;nexp_0x17@outlook.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Honor MagicBook 13 2023 has a touchpad which do not switch to the multitouch
mode until the input mode feature is written by the host.  The touchpad do
report the input mode at touchpad(3), while itself working under mouse mode. As
a workaround, it is possible to call MT_QUIRE_FORCE_GET_FEATURE to force set
feature in mt_set_input_mode for such device.

The touchpad reports as BLTP7853, which cannot retrive any useful manufacture
information on the internel by this string at present.  As the serial number of
the laptop is GLO-G52, while DMI info reports the laptop serial number as
GLO-GXXX, this workaround should applied to all models which has the GLO-GXXX.

Signed-off-by: Aoba K &lt;nexp_0x17@outlook.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: hid-asus: reset the backlight brightness level on resume</title>
<updated>2023-11-22T10:23:19+00:00</updated>
<author>
<name>Denis Benato</name>
<email>benato.denis96@gmail.com</email>
</author>
<published>2023-11-17T01:15:56+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=546edbd26cff7ae990e480a59150e801a06f77b1'/>
<id>546edbd26cff7ae990e480a59150e801a06f77b1</id>
<content type='text'>
Some devices managed by this driver automatically set brightness to 0
before entering a suspended state and reset it back to a default
brightness level after the resume:
this has the effect of having the kernel report wrong brightness
status after a sleep, and on some devices (like the Asus RC71L) that
brightness is the intensity of LEDs directly facing the user.

Fix the above issue by setting back brightness to the level it had
before entering a sleep state.

Signed-off-by: Denis Benato &lt;benato.denis96@gmail.com&gt;
Signed-off-by: Luke D. Jones &lt;luke@ljones.dev&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Some devices managed by this driver automatically set brightness to 0
before entering a suspended state and reset it back to a default
brightness level after the resume:
this has the effect of having the kernel report wrong brightness
status after a sleep, and on some devices (like the Asus RC71L) that
brightness is the intensity of LEDs directly facing the user.

Fix the above issue by setting back brightness to the level it had
before entering a sleep state.

Signed-off-by: Denis Benato &lt;benato.denis96@gmail.com&gt;
Signed-off-by: Luke D. Jones &lt;luke@ljones.dev&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: hid-asus: add const to read-only outgoing usb buffer</title>
<updated>2023-11-22T10:23:19+00:00</updated>
<author>
<name>Denis Benato</name>
<email>benato.denis96@gmail.com</email>
</author>
<published>2023-11-17T01:15:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=06ae5afce8cc1f7621cc5c7751e449ce20d68af7'/>
<id>06ae5afce8cc1f7621cc5c7751e449ce20d68af7</id>
<content type='text'>
In the function asus_kbd_set_report the parameter buf is read-only
as it gets copied in a memory portion suitable for USB transfer,
but the parameter is not marked as const: add the missing const and mark
const immutable buffers passed to that function.

Signed-off-by: Denis Benato &lt;benato.denis96@gmail.com&gt;
Signed-off-by: Luke D. Jones &lt;luke@ljones.dev&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
In the function asus_kbd_set_report the parameter buf is read-only
as it gets copied in a memory portion suitable for USB transfer,
but the parameter is not marked as const: add the missing const and mark
const immutable buffers passed to that function.

Signed-off-by: Denis Benato &lt;benato.denis96@gmail.com&gt;
Signed-off-by: Luke D. Jones &lt;luke@ljones.dev&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Revert "HID: logitech-dj: Add support for a new lightspeed receiver iteration"</title>
<updated>2023-11-21T13:38:11+00:00</updated>
<author>
<name>Jiri Kosina</name>
<email>jkosina@suse.cz</email>
</author>
<published>2023-11-21T13:38:11+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=5b4ffb176d7979ac66b349addf3f7de433335e00'/>
<id>5b4ffb176d7979ac66b349addf3f7de433335e00</id>
<content type='text'>
This reverts commit 9d1bd9346241cd6963b58da7ffb7ed303285f684.

Multiple people reported misbehaving devices and reverting this commit fixes
the problem for them. As soon as the original commit author starts reacting
again, we can try to figure out why he hasn't seen the issues (mismatching
report descriptors?), but for the time being, fix for 6.7 by reverting.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=218172
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218094

Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This reverts commit 9d1bd9346241cd6963b58da7ffb7ed303285f684.

Multiple people reported misbehaving devices and reverting this commit fixes
the problem for them. As soon as the original commit author starts reacting
again, we can try to figure out why he hasn't seen the issues (mismatching
report descriptors?), but for the time being, fix for 6.7 by reverting.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=218172
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218094

Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: add ALWAYS_POLL quirk for Apple kb</title>
<updated>2023-11-21T08:49:50+00:00</updated>
<author>
<name>Oliver Neukum</name>
<email>oneukum@suse.com</email>
</author>
<published>2023-11-14T14:54:30+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=c55092187d9ad7b2f8f5a8645286fa03997d442f'/>
<id>c55092187d9ad7b2f8f5a8645286fa03997d442f</id>
<content type='text'>
These devices disconnect if suspended without remote wakeup. They can operate
with the standard driver.

Signed-off-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
These devices disconnect if suspended without remote wakeup. They can operate
with the standard driver.

Signed-off-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: glorious: fix Glorious Model I HID report</title>
<updated>2023-11-21T08:37:50+00:00</updated>
<author>
<name>Brett Raye</name>
<email>braye@fastmail.com</email>
</author>
<published>2023-11-03T01:10:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=a5e913c25b6b2b6ae02acef6d9400645ac03dfdf'/>
<id>a5e913c25b6b2b6ae02acef6d9400645ac03dfdf</id>
<content type='text'>
The Glorious Model I mouse has a buggy HID report descriptor for its
keyboard endpoint (used for programmable buttons). For report ID 2, there
is a mismatch between Logical Minimum and Usage Minimum in the array that
reports keycodes.

The offending portion of the descriptor: (from hid-decode)

0x95, 0x05,                    //  Report Count (5)                   30
0x75, 0x08,                    //  Report Size (8)                    32
0x15, 0x00,                    //  Logical Minimum (0)                34
0x25, 0x65,                    //  Logical Maximum (101)              36
0x05, 0x07,                    //  Usage Page (Keyboard)              38
0x19, 0x01,                    //  Usage Minimum (1)                  40
0x29, 0x65,                    //  Usage Maximum (101)                42
0x81, 0x00,                    //  Input (Data,Arr,Abs)               44

This bug shifts all programmed keycodes up by 1. Importantly, this causes
"empty" array indexes of 0x00 to be interpreted as 0x01, ErrorRollOver.
The presence of ErrorRollOver causes the system to ignore all keypresses
from the endpoint and breaks the ability to use the programmable buttons.

Setting byte 41 to 0x00 fixes this, and causes keycodes to be interpreted
correctly.

Also, USB_VENDOR_ID_GLORIOUS is changed to USB_VENDOR_ID_SINOWEALTH,
and a new ID for Laview Technology is added. Glorious seems to be
white-labeling controller boards or mice from these vendors. There isn't a
single canonical vendor ID for Glorious products.

Signed-off-by: Brett Raye &lt;braye@fastmail.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The Glorious Model I mouse has a buggy HID report descriptor for its
keyboard endpoint (used for programmable buttons). For report ID 2, there
is a mismatch between Logical Minimum and Usage Minimum in the array that
reports keycodes.

The offending portion of the descriptor: (from hid-decode)

0x95, 0x05,                    //  Report Count (5)                   30
0x75, 0x08,                    //  Report Size (8)                    32
0x15, 0x00,                    //  Logical Minimum (0)                34
0x25, 0x65,                    //  Logical Maximum (101)              36
0x05, 0x07,                    //  Usage Page (Keyboard)              38
0x19, 0x01,                    //  Usage Minimum (1)                  40
0x29, 0x65,                    //  Usage Maximum (101)                42
0x81, 0x00,                    //  Input (Data,Arr,Abs)               44

This bug shifts all programmed keycodes up by 1. Importantly, this causes
"empty" array indexes of 0x00 to be interpreted as 0x01, ErrorRollOver.
The presence of ErrorRollOver causes the system to ignore all keypresses
from the endpoint and breaks the ability to use the programmable buttons.

Setting byte 41 to 0x00 fixes this, and causes keycodes to be interpreted
correctly.

Also, USB_VENDOR_ID_GLORIOUS is changed to USB_VENDOR_ID_SINOWEALTH,
and a new ID for Laview Technology is added. Glorious seems to be
white-labeling controller boards or mice from these vendors. There isn't a
single canonical vendor ID for Glorious products.

Signed-off-by: Brett Raye &lt;braye@fastmail.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: fix HID device resource race between HID core and debugging support</title>
<updated>2023-11-21T08:35:39+00:00</updated>
<author>
<name>Charles Yi</name>
<email>be286@163.com</email>
</author>
<published>2023-10-31T04:32:39+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=fc43e9c857b7aa55efba9398419b14d9e35dcc7d'/>
<id>fc43e9c857b7aa55efba9398419b14d9e35dcc7d</id>
<content type='text'>
hid_debug_events_release releases resources bound to the HID device instance.
hid_device_release releases the underlying HID device instance potentially
before hid_debug_events_release has completed releasing debug resources bound
to the same HID device instance.

Reference count to prevent the HID device instance from being torn down
preemptively when HID debugging support is used. When count reaches zero,
release core resources of HID device instance using hiddev_free.

The crash:

[  120.728477][ T4396] kernel BUG at lib/list_debug.c:53!
[  120.728505][ T4396] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
[  120.739806][ T4396] Modules linked in: bcmdhd dhd_static_buf 8822cu pcie_mhi r8168
[  120.747386][ T4396] CPU: 1 PID: 4396 Comm: hidt_bridge Not tainted 5.10.110 #257
[  120.754771][ T4396] Hardware name: Rockchip RK3588 EVB4 LP4 V10 Board (DT)
[  120.761643][ T4396] pstate: 60400089 (nZCv daIf +PAN -UAO -TCO BTYPE=--)
[  120.768338][ T4396] pc : __list_del_entry_valid+0x98/0xac
[  120.773730][ T4396] lr : __list_del_entry_valid+0x98/0xac
[  120.779120][ T4396] sp : ffffffc01e62bb60
[  120.783126][ T4396] x29: ffffffc01e62bb60 x28: ffffff818ce3a200
[  120.789126][ T4396] x27: 0000000000000009 x26: 0000000000980000
[  120.795126][ T4396] x25: ffffffc012431000 x24: ffffff802c6d4e00
[  120.801125][ T4396] x23: ffffff8005c66f00 x22: ffffffc01183b5b8
[  120.807125][ T4396] x21: ffffff819df2f100 x20: 0000000000000000
[  120.813124][ T4396] x19: ffffff802c3f0700 x18: ffffffc01d2cd058
[  120.819124][ T4396] x17: 0000000000000000 x16: 0000000000000000
[  120.825124][ T4396] x15: 0000000000000004 x14: 0000000000003fff
[  120.831123][ T4396] x13: ffffffc012085588 x12: 0000000000000003
[  120.837123][ T4396] x11: 00000000ffffbfff x10: 0000000000000003
[  120.843123][ T4396] x9 : 455103d46b329300 x8 : 455103d46b329300
[  120.849124][ T4396] x7 : 74707572726f6320 x6 : ffffffc0124b8cb5
[  120.855124][ T4396] x5 : ffffffffffffffff x4 : 0000000000000000
[  120.861123][ T4396] x3 : ffffffc011cf4f90 x2 : ffffff81fee7b948
[  120.867122][ T4396] x1 : ffffffc011cf4f90 x0 : 0000000000000054
[  120.873122][ T4396] Call trace:
[  120.876259][ T4396]  __list_del_entry_valid+0x98/0xac
[  120.881304][ T4396]  hid_debug_events_release+0x48/0x12c
[  120.886617][ T4396]  full_proxy_release+0x50/0xbc
[  120.891323][ T4396]  __fput+0xdc/0x238
[  120.895075][ T4396]  ____fput+0x14/0x24
[  120.898911][ T4396]  task_work_run+0x90/0x148
[  120.903268][ T4396]  do_exit+0x1bc/0x8a4
[  120.907193][ T4396]  do_group_exit+0x8c/0xa4
[  120.911458][ T4396]  get_signal+0x468/0x744
[  120.915643][ T4396]  do_signal+0x84/0x280
[  120.919650][ T4396]  do_notify_resume+0xd0/0x218
[  120.924262][ T4396]  work_pending+0xc/0x3f0

[ Rahul Rameshbabu &lt;sergeantsagara@protonmail.com&gt;: rework changelog ]
Fixes: cd667ce24796 ("HID: use debugfs for events/reports dumping")
Signed-off-by: Charles Yi &lt;be286@163.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
hid_debug_events_release releases resources bound to the HID device instance.
hid_device_release releases the underlying HID device instance potentially
before hid_debug_events_release has completed releasing debug resources bound
to the same HID device instance.

Reference count to prevent the HID device instance from being torn down
preemptively when HID debugging support is used. When count reaches zero,
release core resources of HID device instance using hiddev_free.

The crash:

[  120.728477][ T4396] kernel BUG at lib/list_debug.c:53!
[  120.728505][ T4396] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
[  120.739806][ T4396] Modules linked in: bcmdhd dhd_static_buf 8822cu pcie_mhi r8168
[  120.747386][ T4396] CPU: 1 PID: 4396 Comm: hidt_bridge Not tainted 5.10.110 #257
[  120.754771][ T4396] Hardware name: Rockchip RK3588 EVB4 LP4 V10 Board (DT)
[  120.761643][ T4396] pstate: 60400089 (nZCv daIf +PAN -UAO -TCO BTYPE=--)
[  120.768338][ T4396] pc : __list_del_entry_valid+0x98/0xac
[  120.773730][ T4396] lr : __list_del_entry_valid+0x98/0xac
[  120.779120][ T4396] sp : ffffffc01e62bb60
[  120.783126][ T4396] x29: ffffffc01e62bb60 x28: ffffff818ce3a200
[  120.789126][ T4396] x27: 0000000000000009 x26: 0000000000980000
[  120.795126][ T4396] x25: ffffffc012431000 x24: ffffff802c6d4e00
[  120.801125][ T4396] x23: ffffff8005c66f00 x22: ffffffc01183b5b8
[  120.807125][ T4396] x21: ffffff819df2f100 x20: 0000000000000000
[  120.813124][ T4396] x19: ffffff802c3f0700 x18: ffffffc01d2cd058
[  120.819124][ T4396] x17: 0000000000000000 x16: 0000000000000000
[  120.825124][ T4396] x15: 0000000000000004 x14: 0000000000003fff
[  120.831123][ T4396] x13: ffffffc012085588 x12: 0000000000000003
[  120.837123][ T4396] x11: 00000000ffffbfff x10: 0000000000000003
[  120.843123][ T4396] x9 : 455103d46b329300 x8 : 455103d46b329300
[  120.849124][ T4396] x7 : 74707572726f6320 x6 : ffffffc0124b8cb5
[  120.855124][ T4396] x5 : ffffffffffffffff x4 : 0000000000000000
[  120.861123][ T4396] x3 : ffffffc011cf4f90 x2 : ffffff81fee7b948
[  120.867122][ T4396] x1 : ffffffc011cf4f90 x0 : 0000000000000054
[  120.873122][ T4396] Call trace:
[  120.876259][ T4396]  __list_del_entry_valid+0x98/0xac
[  120.881304][ T4396]  hid_debug_events_release+0x48/0x12c
[  120.886617][ T4396]  full_proxy_release+0x50/0xbc
[  120.891323][ T4396]  __fput+0xdc/0x238
[  120.895075][ T4396]  ____fput+0x14/0x24
[  120.898911][ T4396]  task_work_run+0x90/0x148
[  120.903268][ T4396]  do_exit+0x1bc/0x8a4
[  120.907193][ T4396]  do_group_exit+0x8c/0xa4
[  120.911458][ T4396]  get_signal+0x468/0x744
[  120.915643][ T4396]  do_signal+0x84/0x280
[  120.919650][ T4396]  do_notify_resume+0xd0/0x218
[  120.924262][ T4396]  work_pending+0xc/0x3f0

[ Rahul Rameshbabu &lt;sergeantsagara@protonmail.com&gt;: rework changelog ]
Fixes: cd667ce24796 ("HID: use debugfs for events/reports dumping")
Signed-off-by: Charles Yi &lt;be286@163.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: apple: add Jamesdonkey and A3R to non-apple keyboards list</title>
<updated>2023-11-21T08:31:51+00:00</updated>
<author>
<name>Yihong Cao</name>
<email>caoyihong4@outlook.com</email>
</author>
<published>2023-10-29T17:05:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=113f736655e4f20633e107d731dd5bd097d5938c'/>
<id>113f736655e4f20633e107d731dd5bd097d5938c</id>
<content type='text'>
Jamesdonkey A3R keyboard is identified as "Jamesdonkey A3R" in wired
mode, "A3R-U" in wireless mode and "A3R" in bluetooth mode. Adding them
to non-apple keyboards fixes function key.

Signed-off-by: Yihong Cao &lt;caoyihong4@outlook.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Jamesdonkey A3R keyboard is identified as "Jamesdonkey A3R" in wired
mode, "A3R-U" in wireless mode and "A3R" in bluetooth mode. Adding them
to non-apple keyboards fixes function key.

Signed-off-by: Yihong Cao &lt;caoyihong4@outlook.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>HID: mcp2221: Allow IO to start during probe</title>
<updated>2023-11-21T08:29:47+00:00</updated>
<author>
<name>Hamish Martin</name>
<email>hamish.martin@alliedtelesis.co.nz</email>
</author>
<published>2023-10-25T03:55:11+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=73ce9f1f2741a38f5d27393e627702ae2c46e6f2'/>
<id>73ce9f1f2741a38f5d27393e627702ae2c46e6f2</id>
<content type='text'>
During the probe we add an I2C adapter and as soon as we add that adapter
it may be used for a transfer (e.g via the code in i2cdetect()).
Those transfers are not able to complete and time out. This is because the
HID raw_event callback (mcp2221_raw_event) will not be invoked until the
HID device's 'driver_input_lock' is marked up at the completion of the
probe in hid_device_probe(). This starves the driver of the responses it
is waiting for.
In order to allow the I2C transfers to complete while we are still in the
probe, start the IO once we have completed init of the HID device.

This issue seems to have been seen before and a patch was submitted but
it seems it was never accepted. See:
https://lore.kernel.org/all/20221103222714.21566-3-Enrik.Berkhan@inka.de/

Signed-off-by: Hamish Martin &lt;hamish.martin@alliedtelesis.co.nz&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
During the probe we add an I2C adapter and as soon as we add that adapter
it may be used for a transfer (e.g via the code in i2cdetect()).
Those transfers are not able to complete and time out. This is because the
HID raw_event callback (mcp2221_raw_event) will not be invoked until the
HID device's 'driver_input_lock' is marked up at the completion of the
probe in hid_device_probe(). This starves the driver of the responses it
is waiting for.
In order to allow the I2C transfers to complete while we are still in the
probe, start the IO once we have completed init of the HID device.

This issue seems to have been seen before and a patch was submitted but
it seems it was never accepted. See:
https://lore.kernel.org/all/20221103222714.21566-3-Enrik.Berkhan@inka.de/

Signed-off-by: Hamish Martin &lt;hamish.martin@alliedtelesis.co.nz&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
</pre>
</div>
</content>
</entry>
</feed>
