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Pull HID updates from Jiri Kosina: - touch_max detection improvements and quirk handling fixes in wacom driver from Jason Gerecke and Ping Cheng - Palm rejection from Dmitry Torokhov and _dial support from Benjamin Tissoires for hid-multitouch driver - Low voltage support for i2c-hid driver from Stephen Boyd - Guitar-Hero support from Nicolas Adenis-Lamarre - other assorted small fixes and device ID additions * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (40 commits) HID: intel_ish-hid: tx_buf memory leak on probe/remove HID: intel-ish-hid: Prevent loading of driver on Mehlow HID: cougar: Add support for the Cougar 500k Gaming Keyboard HID: cougar: make compare_device_paths reusable HID: intel-ish-hid: remove redundant variable num_frags HID: multitouch: handle palm for touchscreens HID: multitouch: touchscreens also use confidence reports HID: multitouch: report MT_TOOL_PALM for non-confident touches HID: microsoft: support the Surface Dial HID: core: do not upper bound the collection stack HID: input: enable Totem on the Dell Canvas 27 HID: multitouch: remove one copy of values HID: multitouch: ditch mt_report_id HID: multitouch: store a per application quirks value HID: multitouch: Store per collection multitouch data HID: multitouch: make sure the static list of class is not changed input: add MT_TOOL_DIAL HID: elan: Add support for touchpad on the Toshiba Click Mini L9W HID: elan: Add USB-id for HP x2 10-n000nd touchpad HID: elan: Add a flag for selecting if the touchpad has a LED ...
44 lines
1.4 KiB
Text
44 lines
1.4 KiB
Text
* HID over I2C Device-Tree bindings
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HID over I2C provides support for various Human Interface Devices over the
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I2C bus. These devices can be for example touchpads, keyboards, touch screens
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or sensors.
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The specification has been written by Microsoft and is currently available here:
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http://msdn.microsoft.com/en-us/library/windows/hardware/hh852380.aspx
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If this binding is used, the kernel module i2c-hid will handle the communication
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with the device and the generic hid core layer will handle the protocol.
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Required properties:
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- compatible: must be "hid-over-i2c"
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- reg: i2c slave address
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- hid-descr-addr: HID descriptor address
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- interrupts: interrupt line
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Additional optional properties:
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Some devices may support additional optional properties to help with, e.g.,
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power sequencing. The following properties can be supported by one or more
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device-specific compatible properties, which should be used in addition to the
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"hid-over-i2c" string.
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- compatible:
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* "wacom,w9013" (Wacom W9013 digitizer). Supports:
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- vdd-supply (3.3V)
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- vddl-supply (1.8V)
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- post-power-on-delay-ms
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- vdd-supply: phandle of the regulator that provides the supply voltage.
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- post-power-on-delay-ms: time required by the device after enabling its regulators
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or powering it on, before it is ready for communication.
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Example:
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i2c-hid-dev@2c {
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compatible = "hid-over-i2c";
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reg = <0x2c>;
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hid-descr-addr = <0x0020>;
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interrupt-parent = <&gpx3>;
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interrupts = <3 2>;
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};
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