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Input: Cypress TTSP device driver

From:  Javier Martinez Canillas <>
To:  Kevin McNeely <>
Subject:  Input: Cypress TTSP device driver
Date:  Sat, 20 Aug 2011 00:01:49 -0400
Message-ID:  <>
Cc:  Dmitry Torokhov <>, Henrik Rydberg <>, Srikar <>, Greg Kroah-Hartman <>,,
Archive-link:  Article

Cypress TrueTouch(tm) Standard Product controllers are found in
a wide range of embedded devices. This patchset adds support for a
variety of TTSP controllers.

The original author of the driver is Kevin McNeely <>

Since the hardware is capable of tracking identifiable contacts and the
original driver used multi-touch protocol type A (stateless), I've added
multi-touch protocol type B (stateful) support.

The driver is composed of a core driver that process the data sent by
the contacts (fingers) and two bus specific interface modules (I2C and SPI).

The patchset is composed of:

[PATCH 1/3] Input: cyttsp - Cypress TTSP capacitive multi-touch screen support
[PATCH 2/3] Input: cyttsp - add support for Cypress TTSP touchscreen I2C bus interface
[PATCH 3/3] Input: cyttsp - add support for Cypress TTSP touchscreen SPI bus interface
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