This needs same quirk as applied to other YOGA sensor hubs. Refer to commit
21589ebda6 ("HID: sensor-hub: Add in quirk for Lenovo Yogas with ITE")
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
There seems to be a new version of the Microchip Pick16F1454 with a
different PID (0xf2f7). This device should also be ignored by the HID
driver. The PID was observed with the second version of the Yepkit Ykush
USB hub.
Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Unlike other tablets which are compatible with the wacom_intuos_irq handler,
INTUOSHT2 devices provide pen ID with report ID 8 instead of 5. To ensure
wacom_intuos_schedule_prox_event works as intended for these tablets, we
must be sure it uses the correct report ID in this case.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This makes the driver use the data pointer added to the gpio_chip
to store a pointer to the state container instead of relying on
container_of().
Cc: linux-input@vger.kernel.org
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
When an i2c-hid device is resumed from system sleep the driver resets
the device to be sure it is in known state. The device is expected to
issue an interrupt when reset is complete.
This reset might take few milliseconds to complete so if the HID driver
on top (hid-rmi) starts to set up the device by sending feature reports
etc. the device might not issue the reset complete interrupt anymore.
Below is what happens to touchpad on Lenovo Yoga 900 during resume from
system sleep:
[ 24.790951] i2c_hid i2c-SYNA2B29:00: i2c_hid_hwreset
[ 24.790973] i2c_hid i2c-SYNA2B29:00: i2c_hid_set_power
[ 24.790982] i2c_hid i2c-SYNA2B29:00: __i2c_hid_command: cmd=22 00 00 08
[ 24.793011] i2c_hid i2c-SYNA2B29:00: resetting...
[ 24.793016] i2c_hid i2c-SYNA2B29:00: __i2c_hid_command: cmd=22 00 00 01
Here i2c-hid sends reset command to the touchpad.
[ 24.794012] i2c_hid i2c-SYNA2B29:00: input: 06 00 01 00 00 00
[ 24.794051] i2c_hid i2c-SYNA2B29:00: i2c_hid_set_or_send_report
[ 24.794059] i2c_hid i2c-SYNA2B29:00: __i2c_hid_command:
cmd=22 00 3f 03 0f 23 00 04 00 0f 01
Now hid-rmi puts the touchpad to correct mode by sending it a feature
report. This makes the touchpad not to issue reset complete interrupt.
[ 24.796092] i2c_hid i2c-SYNA2B29:00: __i2c_hid_command: waiting...
i2c-hid starts to wait for the reset interrupt to trigger which never
happens.
[ 24.798304] i2c_hid i2c-SYNA2B29:00: i2c_hid_set_or_send_report
[ 24.798313] i2c_hid i2c-SYNA2B29:00: __i2c_hid_command:
cmd=25 00 17 00 09 01 42 00 2e 00 19 19 00 10 cc 06 74 04 0f
19 00 00 00 00 00
Yet another output report from hid-rmi driver.
[ 29.795630] i2c_hid i2c-SYNA2B29:00: __i2c_hid_command: finished.
[ 29.795637] i2c_hid i2c-SYNA2B29:00: failed to reset device.
After 5 seconds i2c-hid driver times out.
[ 29.795642] i2c_hid i2c-SYNA2B29:00: i2c_hid_set_power
[ 29.795649] i2c_hid i2c-SYNA2B29:00: __i2c_hid_command: cmd=22 00 01 08
[ 29.797576] dpm_run_callback(): i2c_hid_resume+0x0/0xb0 returns -61
[ 29.797584] PM: Device i2c-SYNA2B29:00 failed to resume: error -61
After this the touchpad does not work anymore (and also resume itself
gets slowed down because of the timeout).
Prevent sending of feature/output reports while the device is being
reset by adding a mutex which is held during that time.
Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Nish Aravamudan <nish.aravamudan@gmail.com>
Suggested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add a new helper to_hid_driver() and use it in hid-core.c.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
to_hid_device() macro is defined in both hid-lg4ff.c and
hid-logitech-hidpp.c. So I move it to include/linux/hid.h.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This mouse, when asked about the battery, ceases to report movements and
clicks. So just don't ask.
Signed-off-by: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Commit c7f0522 incorrectly constructs the 'buttons' variable for the
CINTIQ_COMPANION_2 case. The high nybble of data[2] is shifted four
bits too far, leaving the bits associated with BTN_7 through BTN_A
unset.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Commit c7f0522 reports incorrect touchring values to userspace. This is
due to its incorrect handling of the 'touched' bit present in the 'ring1'
and 'ring2' variables. Instead of using this bit when determining if a
value should be sent, the ABS_WHEEL and ABS_INPUT check (different?!)
portions of the position bits. Furthermore, the full values of 'ring1'
and 'ring2' are reported to userspace, despite the 'touched' flag
needing to be trimmed beforehand. This commit addresses both issues.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Commit c7f0522 accidentally used ABS_RX for reporting both 'strip1' and
'strip2', when the latter should actually be reported through ABS_RY.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Commit c7f0522 uses sixteen bits of data in the construction of 'strip1'
and 'strip2'. This can cause problems in some cases, however, since some
tablets store flags in the MSB of data[2] and data[4] that should not be
included in these values. This restores the 0x1f mask that used prior
to c7f0522.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Smatch complains that these should probably be bitwise ORs instead of
logical. It doesn't matter for "prox" but it makes a difference for
"strip1" and "strip2".
Fixes: c7f0522a1a ('HID: wacom: Slim down wacom_intuos_pad processing')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Here are a number of small USB fixes for 4.4-rc5. All of them have been
in linux-next. The majority are gadget and phy issues, with a few new
quirks and device ids added as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB driver fixes from Greg KH:
"Here are a number of small USB fixes for 4.4-rc5. All of them have
been in linux-next. The majority are gadget and phy issues, with a
few new quirks and device ids added as well"
* tag 'usb-4.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (32 commits)
USB: add quirk for devices with broken LPM
xhci: fix usb2 resume timing and races.
usb: musb: fail with error when no DMA controller set
usb: gadget: uvc: fix permissions of configfs attributes
usb: musb: core: Fix pm runtime for deferred probe
usb: phy: msm: fix a possible NULL dereference
USB: host: ohci-at91: fix a crash in ohci_hcd_at91_overcurrent_irq
usb: Quiet down false peer failure messages
usb: xhci: fix config fail of FS hub behind a HS hub with MTT
xhci: Fix memory leak in xhci_pme_acpi_rtd3_enable()
usb: Use the USB_SS_MULT() macro to decode burst multiplier for log message
USB: whci-hcd: add check for dma mapping error
usb: core : hub: Fix BOS 'NULL pointer' kernel panic
USB: quirks: Apply ALWAYS_POLL to all ELAN devices
usb-storage: Fix scsi-sd failure "Invalid field in cdb" for USB adapter JMicron
USB: quirks: Fix another ELAN touchscreen
usb: dwc3: gadget: don't prestart interrupt endpoints
USB: serial: Another Infineon flash loader USB ID
USB: cdc_acm: Ignore Infineon Flash Loader utility
USB: cp210x: Remove CP2110 ID from compatibility list
...
When splitting the touch-only "BAMBOO_TOUCH" type out of the existing
"BAMBOO_PT" type in 3b164a00, the lowres quirk was not updated so that
it would continue to apply to these devices (effectively only the 0xD0).
The absence of this quirk does not significantly impact usability, but
is a correctness issue nonetheless.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Now, PM core supports asynchronous suspend/resume mode for devices
during system suspend/resume, and the power state transition of one
device may be completed in separate kernel thread. PM core ensures
all power state transition timing dependency between devices. This
patch enables hid devices to suspend/resume asynchronously. This
will take advantage of multicore and improve system suspend/resume
speed.
Signed-off-by: Zhonghui Fu <zhonghui.fu@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
"INTUOSREAD" and "INTUOSWRITE" are poorly named. These are report IDs
for pen ID (proximity) packets. It should be noted that the latter is
only used on Intuos/Intuos2 for a second stylus when DualTrack is in use.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Make the logic for reading X, Y, distance, and pressure a bit more
clear. An additional bit was stuffed into the packet format many
models back, and /most/ devices in use will use it. If we happen
to be dealing with a particularly old tablet, just shift it off
the end to pretend we never read it.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Continue re-organizing and trimming cases to make it easier to wrap
the brain around. A number of changes were made after consulting the
protocol spec and so don't necessarily follow from the code itself.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Reasoning through the conditions under which a particular block of code
in 'wacom_intuos_general' will be reached is not at all easy due to the
sheer number of magic masks and comparisons. Remove these and replace
them with a switch statement over the various 'types' of packets that
will be encountered.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Continue to slim down 'wacom_intuos_irq' by moving all decoding and
reporting of pen packet data into the 'wacom_intuos_general' function.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Seperate the function into two halves: first gather data from the packet,
next report all gathered data. The input subsystem should automatically
mute any events that aren't actually declared for the tablet at hand.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Begin slimming down the body of 'wacom_intuos_irq' by moving out its
largest block of code to a dedicated 'wacom_intuos_pad' function.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
as reported by https://bugzilla.kernel.org/show_bug.cgi?id=108481
This bug reports mentions 6d4f5440 ("HID: multitouch: Fetch feature
reports on demand for Win8 devices") as the origin of the problem but this
commit actually masked 2 firmware bugs that are annihilating each other:
The report descriptor declares two features in reports 3 and 5:
0x05, 0x0d, // Usage Page (Digitizers) 318
0x09, 0x0e, // Usage (Device Configuration) 320
0xa1, 0x01, // Collection (Application) 322
0x85, 0x03, // Report ID (3) 324
0x09, 0x22, // Usage (Finger) 326
0xa1, 0x00, // Collection (Physical) 328
0x09, 0x52, // Usage (Inputmode) 330
0x15, 0x00, // Logical Minimum (0) 332
0x25, 0x0a, // Logical Maximum (10) 334
0x75, 0x08, // Report Size (8) 336
0x95, 0x02, // Report Count (2) 338
0xb1, 0x02, // Feature (Data,Var,Abs) 340
0xc0, // End Collection 342
0x09, 0x22, // Usage (Finger) 343
0xa1, 0x00, // Collection (Physical) 345
0x85, 0x05, // Report ID (5) 347
0x09, 0x57, // Usage (Surface Switch) 349
0x09, 0x58, // Usage (Button Switch) 351
0x15, 0x00, // Logical Minimum (0) 353
0x75, 0x01, // Report Size (1) 355
0x95, 0x02, // Report Count (2) 357
0x25, 0x03, // Logical Maximum (3) 359
0xb1, 0x02, // Feature (Data,Var,Abs) 361
0x95, 0x0e, // Report Count (14) 363
0xb1, 0x03, // Feature (Cnst,Var,Abs) 365
0xc0, // End Collection 367
The report ID 3 presents 2 input mode features, while only the first one
is handled by the device. Given that we did not checked if one was
previously assigned, we were dealing with the ignored featured and we
should never have been able to switch this panel into the multitouch mode.
However, the firmware presents an other bugs which allowed 6d4f5440
to counteract the faulty report descriptor. When we request the values
of the feature 5, the firmware answers "03 03 00". The fields are correct
but the report id is wrong. Before 6d4f5440, we retrieved all the features
and injected them in the system. So when we called report 5, we injected
in the system the report 3 with the values "03 00".
Setting the second input mode to 03 in this report changed it to "03 03"
and the touchpad switched to the mt mode. We could have set anything
in the second field because the actual value (the first 03 in this report)
was given by the query of report ID 5.
To sum up: 2 bugs in the firmware were hiding that we were accessing the
wrong feature.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Looks like 29fae1c85 ("HID: logitech: Add support for G29") was a little
bit aggressive and broke other devices.
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=108121
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
All ELAN hid devices seem to require the ALWAYS_POLL quirk. Let's use
this quirk for all devices from this vendor, rather than maintaining a
list of all its known product IDs.
Tested-by: Adrien Vergé <adrienverge@gmail.com>
Signed-off-by: Adrien Vergé <adrienverge@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The critical section protected by usbhid->lock in hid_ctrl() is too
big and because of this it causes a recursive deadlock. "Too big" means
the case statement and the call to hid_input_report() do not need to be
protected by the spinlock (no URB operations are done inside them).
The deadlock happens because in certain rare cases drivers try to grab
the lock while handling the ctrl irq which grabs the lock before them
as described above. For example newer wacom tablets like 056a:033c try
to reschedule proximity reads from wacom_intuos_schedule_prox_event()
calling hid_hw_request() -> usbhid_request() -> usbhid_submit_report()
which tries to grab the usbhid lock already held by hid_ctrl().
There are two ways to get out of this deadlock:
1. Make the drivers work "around" the ctrl critical region, in the
wacom case for ex. by delaying the scheduling of the proximity read
request itself to a workqueue.
2. Shrink the critical region so the usbhid lock protects only the
instructions which modify usbhid state, calling hid_input_report()
with the spinlock unlocked, allowing the device driver to grab the
lock first, finish and then grab the lock afterwards in hid_ctrl().
This patch implements the 2nd solution.
Signed-off-by: Ioan-Adrian Ratiu <adi@adirat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The code in hid_debug_event() causes horrible code generation. First,
we do a strlen() call for every byte we copy (we're doing a store to
global memory, so gcc has no way of proving that strlen(buf) doesn't
change). Second, since both i, list->tail and HID_DEBUG_BUFSIZE have
signed type, the modulo computation has to take into account the
possibility that list->tail+i is negative, so it's not just a simple
and.
Fix the former by simply not doing strlen() at all (we have to load
buf[i] anyway, so testing it is almost free) and the latter by
changing i to unsigned. This cuts 29% (69 bytes) of the size of the
function.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The usage Confidence is mandary to Windows Precision Touchpad devices. The
appearance of this usage is checked in hidinput_connect but the quirk
MT_QUIRK_VALID_IS_CONFIDENCE is not applied to device accordingly.
Apply this quirk and also remove quirk MT_QUIRK_ALWAYS_VALID to enable palm
rejection for the WIN 8 touchpad devices which have implemented usage
Confidence in its input reports.
Tested on Dell XPS 13 laptop.
Signed-off-by: Allen Hung <allen_hung@dell.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
If an event is discarded the device stays idle. Just reverse the order of
check and marking busy.
Found by code inspection.
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
scnprintf() exists to provide these semantics, so we might as well use
it.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Ensure that the G920 is not given the default deadzones.
Signed-off-by: Simon Wood <simon@mungewell.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The Logitech G920 uses a couple of vendor specific usage pages,
which results in incorrect number of axis/buttons being detected.
This patch adds these pages to the 'ignore' list.
Reported-by: Elias Vanderstuyft <elias.vds@gmail.com>
Signed-off-by: Simon Wood <simon@mungewell.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The G920 can adjust the amount of 'turn' it permits, this patch adds
a sysfs file 'range' to control this.
Signed-off-by: Simon Wood <simon@mungewell.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch adds basic support for the Logitech G920 wheel when in HID
mode. This wheel 'speaks' the HID++ protocol, and therefor is driven
with hid-logitech-hidpp.
At this stage the driver only shows that it can communicate with the
wheel by outputting the name discovered over HID++.
The normal HID functions work to give input functionality using
joystick/event interface.
Note: in 'hidpp_probe()' we have to start the hardware to get packets
flowing, the same might apply in future for other devices which don't
use the unifying protocol.
Signed-off-by: Simon Wood <simon@mungewell.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Patch add support for the 'very long' HID++ packets, which are
64 bytes in length.
Signed-off-by: Simon Wood <simon@mungewell.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Without quirk keyboard repeats '6' until volume control is used since it
indicates the key is pressed without ever releasing.
Signed-off-by: Jimmy Berry <jimmy@boombatower.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Currently the sysfs report_descriptor attribute is only available if the device
is claimed. We have the descriptor before we even create the device node, so
just instantiate report_descriptor statically.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The kobject_put() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
i2c_driver does not need to set an owner because i2c_register_driver()
will set it.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Sony has modified the HID descriptor in new revisions of the Dualshock 4 which
causes the size check in the descriptor replacement function to fail. Remove it
so that new revisions of the controller will work correctly.
The module is completely replacing the descriptor instead of patching it, so the
size check isn't really necessary anyways.
Signed-off-by: Frank Praznik <frank.praznik@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
On hardware which provides standby power for charging devices the state of the
LEDs and force-feedback on controllers can persist even when the system is in
standby. Additionally, the state of the controllers on resume may be different
from the state they were in at the time when they were suspended (ie. LEDs are
cleared on resume).
This implements the suspend and resume callbacks which saves and clears the
state of the LEDs on suspend and restores them on resume. Force-feedback is
stopped on suspend but not automatically restored on resume until a new event is
received to avoid potentially damaging hardware.
USB Sixaxis and navigation controllers must be reinitialized when the hardware
is reset on resume or they won't send any input reports.
Signed-off-by: Frank Praznik <frank.praznik@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Refactor the output report sending functions to allow for the sending of output
reports without enqueuing a work item. Output reports for any device can now be
sent via the send_output_report function pointer in the sony_sc struct which
points to the appropriate output function. The individual state worker
functions have been replaced with a universal sony_state_worker function which
uses this function pointer.
Signed-off-by: Frank Praznik <frank.praznik@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The name .dev in a struct is normally reserved for a struct device
that is let us say a superclass to the thing described by the struct.
struct gpio_chip stands out by confusingly using a struct device *dev
to point to the parent device (such as a platform_device) that
represents the hardware. As we want to give gpio_chip:s real devices,
this is not working. We need to rename this member to parent.
This was done by two coccinelle scripts, I guess it is possible to
combine them into one, but I don't know such stuff. They look like
this:
@@
struct gpio_chip *var;
@@
-var->dev
+var->parent
and:
@@
struct gpio_chip var;
@@
-var.dev
+var.parent
and:
@@
struct bgpio_chip *var;
@@
-var->gc.dev
+var->gc.parent
Plus a few instances of bgpio that I couldn't figure out how
to teach Coccinelle to rewrite.
This patch hits all over the place, but I *strongly* prefer this
solution to any piecemal approaches that just exercise patch
mechanics all over the place. It mainly hits drivers/gpio and
drivers/pinctrl which is my own backyard anyway.
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Alek Du <alek.du@intel.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Given that INTUOSHT < BAMBOO_PT
features->type >= INTUOSHT || features->type <= BAMBOO_PT
condition is always true, and therefore device_type is under certain
circumstances wrongly set with WACOM_DEVICETYPE_PAD bit set.
Fix the condition so that it actually represents the range as intended.
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
DTU1141 has an extra 1 mm tablet active outbounding area on each
side of the display, same as those recently released DTUs.
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Pull HID updates from Jiri Kosina:
"Highlights:
- Intel Skylake Win8 precision touchpads support fixes/improvements
from Mika Westerberg
- Lenovo Yoga 2 quirk from Ritesh Raj Sarraf
- potential uninitialized buffer access fix in HID core from Richard
Purdie
- Wacom Intuos and Wacom Cintiq 2 support improvements from Jason
Gerecke and Ping Cheng
- initiation of sysfs deprecation process for most of the roccat
drivers, from the roccat support maintiner Stefan Achatz
- quite a few device ID / quirk additions and small fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (30 commits)
HID: logitech: Add support for G29
HID: logitech: Simplify wheel detection scheme
HID: wacom: Call 'wacom_query_tablet_data' only after 'hid_hw_start'
HID: wacom: Fix ABS_MISC reporting for Cintiq Companion 2
HID: wacom: Remove useless conditions from 'wacom_query_tablet_data'
HID: wacom: fix Intuos wireless report id issue
HID: fix some indenting issues
HID: wacom: Expect 'touch_max' touches if HID_DG_CONTACTCOUNT not present
HID: wacom: Tie cached HID_DG_CONTACTCOUNT indices to report ID
HID: roccat: Fixed resubmit: Deprecating most Roccat sysfs attributes
HID: wacom: Report full pressure range for Intuos, Cintiq 13HD Touch
HID: wacom: Add support for Cintiq Companion 2
HID: multitouch: Fetch feature reports on demand for Win8 devices
HID: sensor-hub: Add quirk for Lenovo Yoga 2 with ITE Chips
HID: usbhid: Fix for the WiiU adapter from Mayflash
HID: corsair: boolify struct k90_led.removed
HID: corsair: Add Corsair Vengeance K90 driver
HID: hid-input: allow input_configured callback return errors
HID: multitouch: Add suffix for HID_DG_TOUCHPAD
HID: i2c-hid: Fill in physical device providing HID functionality
...
At present the G29 is mis-identified as a DFGT, this patch ensures
that the wheel is correctly detected and allows setting the LEDs and
turning range via the '/sys' interface.
This wheel can also emulate other types of Logitech wheels.
Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Simplfy how hid-logitech driver detects the native mode of the wheel,
done by looking at the USB-ID revision and comparing bit mask.
Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The input_configured callback was recently changed to return
an 'int', but the newly added driver uses the old API:
drivers/hid/hid-gfrm.c:151:22: warning: initialization from incompatible pointer type [-Wincompatible-pointer-types]
This changes the driver like the other ones.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 34fc1322e7 ("HID: hid-gfrm: Google Fiber TV Box remote controls")
Fixes: b2c68a2f1b ("HID: hid-input: allow input_configured callback return errors")
Acked-by: Petri Gynther <pgynther@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
When configuring input device via input_configured callback we may
encounter errors (for example input_mt_init_slots() may fail). Instead
of continuing with half-initialized input device let's allow driver
indicate failures.
Signed-off-by: Jaikumar Ganesh <jaikumarg@android.com>
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Nikolai Kondrashov <Nikolai.Kondrashov@redhat.com>
Acked-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
When connecting the Cintiq Companion 2 as an external tablet (i.e., using
it in "hybrid" mode) it has been seen to cause the kernel of the machine
it is connected to to Oops. The cause has been traced to us attempting to
switch the tablet's mode prior to actually starting HID device (resulting
in the eventual dereference of the uninitialized control URB).
Commit 3b164a0 moved the mode switch from occuring post-start to occurring
pre-start. The change was not seen to cause issues largely due to the fact
that most devices mode switch with 'hid_hw_raw_request' (which is safe to
call prior to start) rather than 'hid_hw_request'.
Moving the call back to its original location resolves the issue, but
causes some touch-only Bamboo tablets (e.g. 056a:00d0) to stop working.
The affected tablets require us to perform a mode switch on their
vestigial pen interface prior ignoring with -ENODEV, meaning that the
code which is responsible for doing the ignoring has to move as well.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The pad handling code introduced for the Cintiq Companion 2 (f7acb55)
looks at the wrong bytes in the report when deciding whether ABS_MISC
should be sent. This does not cause any issues with the X driver now
that the pen and pad have been split to separate devices, but is
incorrect and has caused issues when backporting to distros with pre-
3.17 kernels.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
When support for the Cintiq Companion Hybrid and Cintiq Companion 2 was
added (36d3c51 and f7acb55), the 'wacom_query_tablet_data' function was
updated to include references to CINTIQ_HYBRID and CINTIQ_COMPANION_2
with the thought that they were necessary to switch the touch interface
into the proper mode. This is unnecessary, however, since those types
are only ever associated with the pen interface -- the touch interfaces
are either CINTIQ_24HDT or HID_GENERIC. To avoid confusion in the future,
we remove the unnecessary CINTIQ_HYBRID and CINTIQ_COMPANION_2 conditions.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Intuos Pen in wireless mode does not have the same report id (2) as
when it is in USB mode (17).
This patch also moves WIRELESS next to REMOTE in type enum so we
can group devices with similar features easily.
Reported-by: Dale Brewe <dlbrewe@hotmail.com>
Tested-by: Dale Brewe <dlbrewe@hotmail.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Some drivers indent some lines in a very weird manner. Fix that.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
When introduced in commit 1b5d514, the check 'if (hid_data->cc_index >= 0)'
in 'wacom_wac_finger_pre_report' was intended to switch where the driver
got the expected number of contacts from: HID_DG_CONTACTCOUNT if the usage
was present, or 'touch_max' otherwise. Unfortunately, an oversight worthy
of a brown paper bag (specifically, that 'cc_index' could never be negative)
meant that the latter 'else' clause would never be entered.
The patch prior to this one introduced a way for 'cc_index' to be negative,
but only if HID_DG_CONTACTCOUNT is present in some report _other_ than the
one being processed. To ensure the 'else' clause is also entered for devices
which don't have HID_DG_CONTACTCOUNT on _any_ report, we add the additional
constraint that 'cc_report' be non-zero (which is true only if the usage is
present in some report).
Cc: stable@vger.kernel.org
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The cached indicies 'cc_index' and 'cc_value_index' introduced in 1b5d514
are only valid for a single report ID. If a touchscreen has multiple
reports with a HID_DG_CONTACTCOUNT usage, its possible that the values
will not be correct for the report we're handling, resulting in an
incorrect value for 'num_expected'. This has been observed with the Cintiq
Companion 2.
To address this, we store the ID of the report those indicies are valid
for in a new 'cc_report' variable. Before using them to get the expected
contact count, we first check if the ID of the report we're processing
matches 'cc_report'. If it doesn't, we update the indicies to point to
the HID_DG_CONTACTCOUNT usage of the current report (if it has one).
Cc: stable@vger.kernel.org
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The new Intuos tablets added in eda01da and the Cintiq 13HD Touch added
in b4bf212 are capable of reporting 2048 levels of pressure. Although the
kernel reports the correct range to userspace, an oversight has resulted
in the driver ingoring the 11th pressure bit and only sending pressures
of 0 through 1023.
We could fix this issue by expanding the type check to include these
devices, but it makes much more sense to just have the driver look at
the device's maximum pressure when determining if it should read the
11th bit.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Adds support for the EMR (pen+pad) and touchscreen devices used by the
Wacom Cintiq Companion 2. This applies both to using the device as a
standalone system, as well as when operating in "Cintiq mode" (where
the EMR/touchscreen are simply exposed as USB devices to the system
its connected to).
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Clifford Jolly <expiredpopsicle@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Some newer Intel Skylake based Dell laptops with Win8 precision touchpad
fail when initial feature reports are fetched from it. Below is an example
output with some additional debug included:
i2c_hid i2c-DLL0704:01: Fetching the HID descriptor
i2c_hid i2c-DLL0704:01: __i2c_hid_command: cmd=20 00
i2c_hid i2c-DLL0704:01: HID Descriptor: 1e 00 00 01 99 02 21 00 24 ...
...
i2c_hid i2c-DLL0704:01: i2c_hid_get_report
i2c_hid i2c-DLL0704:01: __i2c_hid_command: cmd=22 00 38 02 23 00
i2c_hid i2c-DLL0704:01: report (len=4): 04 00 08 05
i2c_hid i2c-DLL0704:01: report id 13
i2c_hid i2c-DLL0704:01: i2c_hid_get_report
i2c_hid i2c-DLL0704:01: __i2c_hid_command: cmd=22 00 3d 02 23 00
i2c_hid i2c-DLL0704:01: failed to retrieve report from device.
i2c_hid i2c-DLL0704:01: report id 7
i2c_hid i2c-DLL0704:01: i2c_hid_get_report
i2c_hid i2c-DLL0704:01: __i2c_hid_command: cmd=22 00 37 02 23 00
i2c_hid i2c-DLL0704:01: report (len=259): 03 01 07 fc 28 fe 84 40 ...
i2c_hid i2c-DLL0704:01: report id 4
i2c_hid i2c-DLL0704:01: i2c_hid_get_report
i2c_hid i2c-DLL0704:01: __i2c_hid_command: cmd=22 00 34 02 23 00
We manage to fetch few reports but then the touchpad dies:
i2c_designware i2c_designware.1: i2c_dw_handle_tx_abort: lost arbitration
i2c_hid i2c-DLL0704:01: failed to retrieve report from device.
it eventually pulls the whole I2C bus low:
i2c_designware i2c_designware.1: controller timed out
i2c_hid i2c-DLL0704:01: failed to set a report to device.
Fix this by preventing initial feature report retrieval for Win8 devices.
Instead we fetch reports as needed in mt_feature_mapping(). This prevents
fetching reports which might cause problems with the device in question.
Suggested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch is a follow-up to 47eeca8a48 (" HID: sensor-hub: Add in quirk
for Lenovo Yogas with ITE")
The Lenovo Yoga 2 13 seems to be sold in multiple variants with minor
difference3s. IN my case, the USB ID for ITE chip is different than the
Yoga 2 11 and Yoga 3 14.
Without the quirk, no data is received from the accelerometer. I have
verified the patch, testing this on 4.3-rc4 (and 4.2 stable). With this
patch, proper orientation data is received.
rrs@learner:~/Community/UpstreamSources/linux-upstream_GIT (stable-42)$
monitor-sensor
** Message: Accelerometer orientation changed: bottom-up
** Message: Light changed: 0.000000 (lux)
±** Message: Accelerometer orientation changed: left-up
** Message: Accelerometer orientation changed: bottom-up
** Message: Accelerometer orientation changed: left-up
** Message: Accelerometer orientation changed: normal
** Message: Light changed: 29.999999 (lux)
monitor-sensor can be found in the iio-sensor-proxy tool.
Signed-off-by: Ritesh Raj Sarraf <rrs@debian.org>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The WiiU adapter from Mayflash (see
http://www.mayflash.com/Products/NINTENDOWiiU/W009.html) is not
working correctly.
The "XInput" mode works fine, the controller is recognized as a xbox
controller. But it is only possible to connect one controller with this method.
In "DInput" mode the device is recognized as some kind of mouse input but no
joystick is created. This commit will change this behavior with
HID_QUIRK_MULTI_INPUT to split the device into 4 input devices so that it will
also create joysticks in /dev/input/js*.
Signed-off-by: Oliver Schmitt <voltumna@gmx.net>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch implements a HID driver for the Corsair Vengeance K90 keyboard.
It fixes the behaviour of the keys using incorrect HID usage codes and exposes
the macro playback mode and current profile to the user space through sysfs
attributes. It also adds two LED class devices controlling the "record" LED and
the backlight.
Signed-off-by: Clément Vuchener <clement.vuchener@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
When configuring input device via input_configured callback we may
encounter errors (for example input_mt_init_slots() may fail). Instead
of continuing with half-initialized input device let's allow driver
indicate failures.
Signed-off-by: Jaikumar Ganesh <jaikumarg@android.com>
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Nikolai Kondrashov <Nikolai.Kondrashov@redhat.com>
Acked-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Instead of printing "UNKNOWN" as device suffix for HID_DG_TOUCHPAD call
the device as "Touchpad".
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Daniel Martin <consume.noise@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Currently hid_connect() prints out following when I2C connected HID devices
is connected:
hid-multitouch 0018:03EB:2136.0001: ... [ATML3432:00 03EB:2136] on
After "on " should read physical device name but it is left empty by the
driver.
Make it look better and fill in the physical device name.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Daniel Martin <consume.noise@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This series of devices supports both pen and touch. It reports
touch data in Bamboo3 format and pen data in Intuos pro format.
Signed-off-by: Ping Cheng <pingc@wacom.com>
Tested-By: Aaron Skomra <aaron.skomra@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Not all Bamboo support both pen and touch. Make sure we deal with
pen only and touch only devices properly.
Signed-off-by: Ping Cheng <pingc@wacom.com>
Tested-By: Aaron Skomra <aaron.skomra@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
hid_connect adds various strings to the buffer but they're all
conditional. You can find circumstances where nothing would be written
to it but the kernel will still print the supposedly empty buffer with
printk. This leads to corruption on the console/in the logs.
Ensure buf is initialized to an empty string.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
[dvhart: Initialize string to "" rather than assign buf[0] = NULL;]
Cc: Jiri Kosina <jikos@kernel.org>
Cc: linux-input@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Just to prettify the log message. Otherwise it would be <UNKNOWN>.
Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Adds support for Microsoft Type Cover 3 with 0x07e2 product ID.
Signed-off-by: Donavan Lance <shvr@fedoraproject.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Fixed HID descriptor for DragonRise Joystick. Replaced default descriptor
which doubles Z axis and causes mixing values of X and Z axes.
Signed-off-by: Maciej Zuk <gzmlke@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The Logitech K400 keyboard has an embedded touchpad which is seen as a
mouse from the OS point of view. There is a hardware shortcut to disable
tap-to-click but the setting is not remembered accross reset, annoying
some users.
We can toggle this feature from the host by using the feature 0x6010:
Touchpad FW items
Reported-by: BALATON Zoltan <balaton@eik.bme.hu>
Tested-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
HIDPP_QUIRK_DELAYED_INIT means two things currently:
- we want to delay the initialization process
- we do not want hid to create an input device based on the report
descriptor.
This should actually be 2 different quirks so we can have special connect
events while still having HID creating the input for us.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
There is an error in the report descriptor of the Thinkpad Helix 2 where
logical minimum value (557376) is greater than logical maximum (491200)
for all of the magnetic flux axis data fields. This error results in a
report descriptor parsing failure that causes the sensors attached to the
hub not to be detected.
dmesg excerpt:
[ 19.866905] drivers/hid/hid-core.c: logical range invalid 0x88140 0x77ec0
[ 19.866914] hid-sensor-hub 0018:2047:0855.0007: item 0 1 0 8 parsing failed
[ 19.866926] hid-sensor-hub 0018:2047:0855.0007: parse failed
[ 19.866933] hid-sensor-hub: probe of 0018:2047:0855.0007 failed with error -22
Add a report fixup to change magnetic flux logical minimums to -557376
for the parsing to succeed and the sensors to get detected.
After applying the fix the sensors get detected, with corresponding drivers
(hid-accel-3d,hid-gyro-3d,etc) loaded, and its possible to read their values.
Signed-off-by: Fernando D S Lima <fernandodsl@gmail.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch enables the Saitek HID quirk for the mode button of the Mad Catz
R.A.T.5 gaming mouse by adding the same quirk that's been neeeded for
preivous versions.
[jikos@kernel.org: update changelog a little bit]
Signed-off-by: Harald Brinkmann <hbrinkmann@braincalibration.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This device is pad (buttons) only, there is no stylus or touch. Up to
five remotes can pair with the device's associated USB dongle.
Signed-off-by: Aaron Skomra <aaron.skomra@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Prior to this commit, numbered button bit setting was done separately
for each device type in wacom_setup_pad_capabilities(). Here we add a
numbered_buttons property to the wacom_features struct and extract the
repeated bit setting code to a new function:
wacom_settup_numbered_buttons().
Signed-off-by: Aaron Skomra <aaron.skomra@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Enable ELAN0100 touchpad driver, found on a Asus X205TA laptop, to
gai 2,3 fingers tap and 2 fingers scroll.
Signed-off-by: Michele Curti <michele.curti@gmail.com>
Reviewed-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Looks like 0x8882 needs the same quirk than 0x8883.
Given that both devices claim they are "TPV OpticalTouchScreen" rename
the 0x8883 to add its PID in the #define.
Reported-by: Blaine Lee <blaine.j.lee@medtronic.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
It was reported that after 10-20 reboots, a usb keyboard plugged
into a docking station would not work unless it was replugged in.
Using usbmon, it turns out the interrupt URBs were streaming with
callback errors of -71 for some reason. The hid-core.c::hid_io_error was
supposed to retry and then reset, but the reset wasn't really happening.
The check for HID_NO_BANDWIDTH was inverted. Fix was simple.
Tested by reporter and locally by me by unplugging a keyboard halfway until I
could recreate a stream of errors but no disconnect.
Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
