summaryrefslogtreecommitdiffstats
path: root/drivers/hid
AgeCommit message (Collapse)Author
2015-08-24HID: quirks: add QUIRK_NOGET for an other TPV touchscreenBenjamin Tissoires
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>
2015-08-18HID: usbhid: Fix the check for HID_RESET_PENDING in hid_io_errorDon Zickus
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>
2015-08-18HID: i2c-hid: Only disable irq wake if it was successfully enabled during ↵Andrew Duggan
suspend Enabling irq wake could potentially fail and calling disable_irq_wake after a failed call to enable_irq_wake could result in an unbalanced irq warning. This patch warns if enable_irq_wake fails and avoids other potential issues caused by calling disable_irq_wake on resume after enable_irq_wake failed during suspend. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-08-18HID: wacom: Use tablet-provided touch height/width values for INTUOSHTJason Gerecke
The current generation of "Intuos" tablets (i.e. INTUOSHT) report touch width and height data just like the "Intuos Pro" do. This commit changes the code to allow these tablets to use the appropriate codepath instead of the one intended for Intuos5/Bamboo. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-08-18HID: gembird: add new driver to fix Gembird JPD-DualForce 2Benjamin Tissoires
This gamepad advertise 5 absolute axis while 4 are actually used. The second Z axis shows some garbage, so it has to be ignored by HID. The first Z axis and the Rz one are actually Rx and Ry. Remap them. We could also just remap and ignore the axis in .input_mapping(). I went ahead with .report_fixup() first, so here it is. Reported-by: Orivej Desh <orivej@gmx.fr> Tested-by: Orivej Desh <orivej@gmx.fr> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-08-12HID: lenovo: Hide middle-button press until releaseJamie Lentin
Don't relay a middle button press to userspace until release, and then only if there was no scroll events inbetween. This is closer to what Xorg's wheel emulation does, and avoids spurious middle-click pastes. Signed-off-by: Jamie Lentin <jm@lentin.co.uk> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-08-12HID: lenovo: Add missing return-value checkJamie Lentin
Signed-off-by: Jamie Lentin <jm@lentin.co.uk> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-08-12HID: lenovo: Use constants for axes namesJamie Lentin
Signed-off-by: Jamie Lentin <jm@lentin.co.uk> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-08-11HID: wacom: Simplify 'wacom_pl_irq'Jason Gerecke
Unlike other IRQ functions, 'wacom_pl_irq' uses the second element of the 'tool' array to store information about its single pen. This makes the function more difficult to understand (since it doesn't follow the general pattern of other IRQ functions) and prevents the possibility of refactoring how pen state is stored. This patch rewrites 'wacom_pl_irq' to follow the usual IRQ conventions, including storing tool type in 'tool[0]' and implicitly tracking prox with the 'id[0]' variable. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-08-10Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid Pull HID fixes from Jiri Kosina: - fix for bounds limit calculation in uclogic driver, by Dan Carpenter - fix for use-after-free during device removal, by Krzysztof Kozlowski - fix for userspace regression (that became apparent only with shiny new libinput, so it's not that bad, but I still consider it 4.2 material), in wacom driver, by Jason Gerecke * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: wacom: Report correct device resolution when using the wireless adapater HID: hid-input: Fix accessing freed memory during device disconnect HID: uclogic: fix limit in uclogic_tablet_enable()
2015-08-10HID: wacom: Report correct device resolution when using the wireless adapaterJason Gerecke
The 'wacom_wireless_work' function does not recalculate the tablet's resolution, causing the value contained in the 'features' struct to always be reported to userspace. This value is valid only for the pen interface, meaning that the value will be incorrect for the touchpad (if present). This in particular causes problems for libinput which relies on the reported resolution being correct. This patch adds the necessary calls to recalculate the resolution for each interface. This requires a little bit of code shuffling since both the 'wacom_set_default_phy' and 'wacom_calculate_res' are declared below their new first point of use in 'wacom_wireless_work'. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-08-10HID: wacom: Do not repeatedly attempt to set device mode on errorJason Gerecke
As an extension of aef3156d7, there is no sense in repeatedly calling the 'wacom_set_report' and 'wacom_get_report' functions if they return an error. Getting an error from them implies that the device is out to lunch: either a hard error code was returned or repeated attempts at recovering from a "soft" error all failed. In either case, doing even more retries is not likely to resolve whatever is wrong. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-08-10HID: wacom: Do not repeatedly attempt to set device mode on errorJason Gerecke
As an extension of aef3156d7, there is no sense in repeatedly calling the 'wacom_set_report' and 'wacom_get_report' functions if they return an error. Getting an error from them implies that the device is out to lunch: either a hard error code was returned or repeated attempts at recovering from a "soft" error all failed. In either case, doing even more retries is not likely to resolve whatever is wrong. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-08-04HID: hid-input: Fix accessing freed memory during device disconnectKrzysztof Kozlowski
During unbinding the driver was dereferencing a pointer to memory already freed by power_supply_unregister(). Driver was freeing its internal description of battery through pointers stored in power_supply structure. However, because the core owns the power supply instance, after calling power_supply_unregister() this memory is freed and the driver cannot access these members. Fix this by storing the pointer to internal description of battery in a local variable before calling power_supply_unregister(), so the pointer remains valid. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reported-by: H.J. Lu <hjl.tools@gmail.com> Fixes: 297d716f6260 ("power_supply: Change ownership from driver to core") Cc: <stable@vger.kernel.org> Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-08-04HID: wacom: Remove WACOM_QUIRK_NO_INPUTJason Gerecke
WACOM_QUIRK_NO_INPUT is a signal to the driver that input devices should not be created for a particular device. This quirk was used by the wireless receiver to prevent any devices from being created during the initial probe (defering it instead until we got a tablet connection event in 'wacom_wireless_work'). This quirk is not necessary now that a device_type is associated with each device. Any input device allocated by 'wacom_allocate_inputs' which is not necessary for a particular device is freed in 'wacom_register_inputs'. In particular, none of the wireless receivers devices have the pen, pad, or touch device types set so the same effect is achieved without the need to be explicit. We now return early in wacom_retrieve_hid_descriptor for wireless devices (to prevent the device_type from being overridden) but since we ignore the HID descriptor for the wireless reciever anyway, this is not an issue. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-08-04HID: wacom: Replace WACOM_QUIRK_MONITOR with WACOM_DEVICETYPE_WL_MONITORJason Gerecke
The monitor interface on the wireless receiver is more logically expressed as a type of device instead of a quirk. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-08-04HID: wacom: Use calculated pkglen for wireless touch interfaceJason Gerecke
Commit 01c846f introduced the 'wacom_compute_pktlen' function which automatically determines the correct value for an interface's pkglen by scanning the HID descriptor. This function returns the correct value for the wireless receiver's touch interface, removing the need for us to set it manually here. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-31HID: sony: Fix DS4 controller reporting rate issuesRostislav Pehlivanov
This commit removes the cap on the DualShock 4 controller reporting rate when connected using Bluetooth. The previous value of '0xB0' capped the rate to only 20.83 Hz which many userspace utilities mistook as a sign of a bad signal. Since a 'B' and an '8' can look similar it's possible that someone mistook the one for another. The new value of '0x80' enables the full 1000 Hz peak reporting rate that the controller is capable of. Frank adds: "Back when the original code was written the purpose of that value was unknown and 0xB0 seemed to work so that's what ended up being used. Now that we know what it actually does and that 0x80 is a better choice I support this patch." [jkosina@suse.com: update changelog] Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com> Acked-by: Frank Praznik <frank.praznik@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-30Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: "The main change is support for keyboards and touchpads found in 2015 editions of Macbooks" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Revert "Input: zforce - don't overwrite the stack" Input: bcm5974 - add support for the 2015 Macbook Pro HID: apple: Add support for the 2015 Macbook Pro Input: bcm5974 - prepare for a new trackpad generation Input: synaptics - dump ext10 capabilities as well
2015-07-29HID: chicony: Add support for Acer Aspire Switch 12Николай Кудрявцев
Acer Aspire Switch 12 keyboard Chicony's controller reports too big usage index on the 1st interface. The patch fixes the report. The work based on solution from drivers/hid/hid-holtek-mouse.c Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=101721 Signed-off-by: Nicholas Kudriavtsev <nkudriavtsev@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-29HID: hid-lg: Add USBID for Logitech G29 WheelSimon Wood
Since this wheel is now available, and the USBID is listed on their website, this patch adds it to allow the hid-lg4ff force feedback driver to find it. I do not have this wheel to test with, but this should at least get it working in emulation mode. Note: There is probably more work required for adjust HID descriptor and handle switching between emulation and native modes. Signed-off-by: Simon Wood <simon@mungewell.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-29HID: uclogic: fix limit in uclogic_tablet_enable()Dan Carpenter
The limit should be ARRAY_SIZE(params) (5 elements) here instead of sizeof(params) (20 bytes). Fixes: 08177f40bd00 ('HID: uclogic: merge hid-huion driver in hid-uclogic') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Nikolai Kondrashov <spbnick@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-27HID: apple: Add support for the 2015 Macbook ProHenrik Rydberg
This patch adds keyboard support for MacbookPro12,1 as WELLSPRING9 (0x0272, 0x0273, 0x0274). The touchpad is handled in a separate bcm5974 patch, as usual. Tested-by: John Horan <knasher@gmail.com> Tested-by: Jochen Radmacher <jradmacher@gmx.de> Tested-by: Yang Hongyang <burnef@gmail.com> Tested-by: Yen-Chin, Lee <coldnew.tw@gmail.com> Tested-by: George Hilios <ghilios@gmail.com> Tested-by: Janez Urevc <janez@janezurevc.name> Signed-off-by: Henrik Rydberg <rydberg@bitmath.org> Acked-by: Jiri Kosina <jkosina@suse.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-07-27HID: core: do not reject devices when they declare too many usagesBenjamin Tissoires
Some device present proprietary collections with a usage min of 0x00 and a usage max of 0xffff. hid-core currently reject them while most of the time this is harmless. Let's ignore the exceeding usages, and hope for the best. Reported-by: Simon Wörner <mail@simon-woerner.de> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-24HID: sony: Drop invalid Sixaxis input reportsFrank Praznik
When connected via Bluetooth the sixaxis periodically sends reports with an ID of 1, the second byte 0xff and the rest zeroed. These reports are not related to the controller state and must be dropped to avoid generating false input events. Link: http://www.spinics.net/lists/linux-bluetooth/msg63028.html Signed-off-by: Frank Praznik <frank.praznik@oh.rr.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-24HID: multitouch: Add support for CJTouch MultiTouchYang Bo
Add device IDs for CJTouch 0020 and 0040 panels. Signed-off-by: Yang Bo <linuxsea@163.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-24HID: microsoft: Add Surface 3 type coverStephen Just
Adding support for the Microsoft Surface 3 (non-pro) Type Cover. The existing definitions and quirks are actually for the Surface Pro 3 type covers. I've renamed the old constants to reflect that they belong to the Surface Pro 3, and added a new constant and matching code for the Surface 3. Signed-off-by: Stephen Just <stephenjust@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-23HID: wacom: Report touch width/height/orientation for GENERIC devicesJason Gerecke
The HID_DG_WIDTH and HID_DG_HEIGHT usages report with width and height of contacts. From this information, a crude determination of orientation is also possible. This patch reports all three to userspace if a device reports this usage. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-23HID: wacom: Ignore contacts in excess of declared contact countJason Gerecke
The reports sent from some touch devices (e.g. the Cintiq 24HDT) contain junk data in the contact slots which follow the final "valid" contact. To avoid forwarding it to usrspace, we store the reported contact count during the pre-process phase and then only process that many contacts. If a device sends its contacts across multiple reports (what Microsoft refers to as "hybrid" mode) then the contact count will be zero for reports other than the first. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-23HID: wacom: Perform all event processing as part of report processingJason Gerecke
In some cases, we need access to information before it becomes available to the 'event' handler. In particular, for some devices we cannot properly process the finger data without first knowing the "contact count" at the very end of the report (e.g. the Cintiq 24HDT touch screen, when forced through the GENERIC codepath). Since the HID subsystem doesn't provide a way to take action before 'event' is called, we take a cue from hid-multitouch.c and add a pre-process step within the 'report' handler that performs the same function. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-20Merge tag 'v4.2-rc3' into nextDmitry Torokhov
Sync up with Linux 4.2-rc3 to bring in infrastructure (OF) pieces.
2015-07-20Input: elan_i2c - enable ELAN0600 acpi panelsBenjamin Tissoires
ELAN0600 seems to work just fine in mouse emulation mode through i2c-hid, but to have full raw touch support we need to register it in elan_i2c.ko Reported-and-tested-by: Alessio Treglia <alessio@debian.org> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Jiri Kosina <jkosina@suse.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-07-17HID: rmi: Set F01 interrupt enable register when not setAndrew Duggan
A firmware bug in some touchpads causes the F01 interrupt enable register to be cleared on reset. This register controls which RMI functions generate interrupts and when it is cleared, the touchpad stops reporting all data. This patch looks for the cleared F01 control register and writes the correct value based on interrupt mask computed while scanning the PDT. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=91102 Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-17HID: wacom: Set default device name to value from wacom->featuresJason Gerecke
Allocated input devices should not use the 'pen_name' by default since we do not know at that point in time if that is an appropriate choice of name. Instead, use the (tool-agnostic) name that is stored in the device's 'wacom_features' structure. This also has the nice side-effect of requring us to be explicit about the naming of the pen device, as we already are for touch and pad devices. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-17HID: wacom: Properly free inputs if 'wacom_allocate_inputs' failsJason Gerecke
The 'wacom_allocate_inputs' function tries to allocate three input devices: one each for the pen, touch, and pad. The pointers that are returned by the 'wacom_allocate_input' calls are temporarily stored to local variables where they are checked to ensure they're non-null before storing them in the 'wacom_wac' structure. If an allocation fails, the 'wacom_free_inputs' function is called to reclaim the memory. Unfortunately, 'wacom_free_inputs' is called prior to the pointers being copied, so it is not actually able to free anything. This patch has the calls to 'wacom_allocate_input' store the pointer directly in the 'wacom_wac' structure where they can be freed. Also, it replaces the call to 'wacom_free_inputs' with the (more general) 'wacom_clean_inputs' and removes the no-longer-used function. [jkosina@suse.com: modify to resolve conflict with 67e123f ("Delete unnecessary checks")] Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-17Merge branch 'for-4.3/upstream' into for-4.3/wacomJiri Kosina
There is a conflict between 67e123f ("Delete unnecessary checks") sitting in for-4.3/upstream and memory allocation failure handling from Jason Gerecke. Pull this so that conflict could be resolved. Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-14HID: cp2112: fix byte order in SMBUS operationsEllen Wang
Change all occurrences of be16 to le16 in cp2112_xfer(), because SMBUS words are little endian, not big endian. Signed-off-by: Ellen Wang <ellen@cumulusnetworks.com> Cc: stable@vger.kernel.org Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-14HID: cp2112: fix I2C_SMBUS_BYTE writeEllen Wang
When doing an I2C_SMBUS_BYTE write (one byte write, no address), the data to be written is in "command" not "data->byte". Signed-off-by: Ellen Wang <ellen@cumulusnetworks.com> Acked-by: Wolfram Sang <wsa@the-dreams.de> Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-13HID: sony: Navigator Axis for L1 buttonSimon Wood
Patch HID report descriptor to add joystick axis for the L1 button (previously missing). Signed-off-by: Simon Wood <simon@mungewell.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-13HID: wacom: remove the extra Pen interface for Wacom Bamboo PADBenjamin Tissoires
As mentioned in the comment in the code, both the pen and touch data come from the interface tagged as BAMBOO_PAD. The driver re-routes the events for the Pen to the generic HID interface and keeps the ones for the touch through this current interface. Clearing the WACOM_DEVICETYPE_PEN bit removes the extra unused interface added in 2a6cdbd ("HID: wacom: Introduce new 'touch_input' device") and makes the Bamboo PAD to behave like in 4.1. Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-13HID: rmi: Write updated F11 control registers after resetAndrew Duggan
When a device is reset the values of control registers will be reset to the defaults. This patch reapplies the control register values set for F11 by the driver. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Tested-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-10HID: input: call input_sync() when automatically releasing a keyDmitry Torokhov
We need to emit EV_SYN/SYN_REPORT between key press and release, otherwise userspace is allowed to "swallow" the event. [jkosina@suse.com: Dmitry says that he's observing this behavior with Plantronics headset] Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-10HID: cp2112: support i2c write-read transfers in hid-cp2112Ellen Wang
cp2112_i2c_xfer() only supports a single i2c_msg. More than one message at a time just returns EIO. This breaks certain important cases. For example, the at24 eeprom driver generates paired write and read messages (for eeprom address and data). Since the device doesn't support i2c repeated starts in general, but does support a single write-repeated-start-read pair (since hardware rev 1), we recognize the latter case and implement only that. Signed-off-by: Ellen Wang <ellen@cumulusnetworks.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-09HID: wacom: Delete unnecessary checks before the function call ↵Markus Elfring
"input_free_device" The input_free_device() 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.com>
2015-07-09HID: rmi: Disable scanning if the device is not a wake sourceAndrew Duggan
Some touchpads are configured with firmware which continues to scan for fingers at a minimal scan rate even after receiving the HID power sleep command. This allows a finger touching the touchpad to genrate a wake event. This patch ensures that scanning is disabled if the touchpad is not a wake source and ensures scanning is enabled on resume. Signed-off-by: Andrew Duggan <aduggan@synaptics.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-09HID: cp2112: support large i2c transfersEllen Wang
cp2112_i2c_xfer() only reads up to 61 bytes, returning EIO on longers reads. The fix is to wrap a loop around cp2112_read() to pick up all the returned data. Signed-off-by: Ellen Wang <ellen@cumulusnetworks.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-08HID: i2c-hid: Call device suspend callback before disabling irqGabriele Mazzotta
i2c-hid takes care of requesting and handling IRQs for HID devices which in turns might expect them to be always active when working in normal conditions. Hence, disabling IRQs before calling the suspend callbacks can potentially cause problems since device drivers might try to perform operations needing them. Fix this by disabling IRQs only after the suspend callbacks had been executed. Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-08HID: cp2112: fix to force single data-report replyAntonio Borneo
Current implementation of cp2112_raw_event() only accepts one data report at a time. If last received data report is not fully handled yet, a new incoming data report will overwrite it. In such case we don't guaranteed to propagate the correct incoming data. The trivial fix implemented here forces a single report at a time by requesting in cp2112_read() no more than 61 byte of data, which is the payload size of a single data report. Cc: stable@vger.kernel.org Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com> Tested-by: Ellen Wang <ellen@cumulusnetworks.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-08HID: wacom: Enable pad device for older Bamboo Touch tabletsJason Gerecke
Commit 862cf55 ("HID: wacom: Introduce a new WACOM_DEVICETYPE_PAD device_type") neglected to set the WACOM_DEVICETYPE_PAD flag for older two-finger Bamboo Touch tablets. Not only does this result in the pad device not appearing when such a tablet is plugged in, but also causes a segfault when 'wacom_bpt_touch' tries to send pad events. This patch adds the flag to resolve these issues. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2015-07-08HID: usbhid: no flushing if device is already polledOliver Neukum
During open() it is unnecessary to wait for the device to flush stale inputs if the device is polled while closed due to a quirk or opening fails. Signed-off-by: Oliver Neukum <oneukum@suse.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>