diff options
author | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2013-06-13 09:50:35 +0200 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2013-07-31 12:10:31 +0200 |
commit | 3d7d248cf484fe37595698e0ca31a9bcecc85a42 (patch) | |
tree | 33b668ffdf0409e3efda2b6f12a3ffe1e57aa87b /Documentation/devicetree/bindings/hid/hid-over-i2c.txt | |
parent | 3366dd9fa887ebbda4872e9554f853eaeda764be (diff) |
HID: i2c-hid: add DT bindings
Add device tree based support for HID over I2C devices.
Tested on an Odroid-X board with a Synaptics touchpad.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'Documentation/devicetree/bindings/hid/hid-over-i2c.txt')
-rw-r--r-- | Documentation/devicetree/bindings/hid/hid-over-i2c.txt | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/hid/hid-over-i2c.txt b/Documentation/devicetree/bindings/hid/hid-over-i2c.txt new file mode 100644 index 000000000000..488edcb264c4 --- /dev/null +++ b/Documentation/devicetree/bindings/hid/hid-over-i2c.txt @@ -0,0 +1,28 @@ +* HID over I2C Device-Tree bindings + +HID over I2C provides support for various Human Interface Devices over the +I2C bus. These devices can be for example touchpads, keyboards, touch screens +or sensors. + +The specification has been written by Microsoft and is currently available here: +http://msdn.microsoft.com/en-us/library/windows/hardware/hh852380.aspx + +If this binding is used, the kernel module i2c-hid will handle the communication +with the device and the generic hid core layer will handle the protocol. + +Required properties: +- compatible: must be "hid-over-i2c" +- reg: i2c slave address +- hid-descr-addr: HID descriptor address +- interrupt-parent: the phandle for the interrupt controller +- interrupts: interrupt line + +Example: + + i2c-hid-dev@2c { + compatible = "hid-over-i2c"; + reg = <0x2c>; + hid-descr-addr = <0x0020>; + interrupt-parent = <&gpx3>; + interrupts = <3 2>; + }; |