On Tue, Aug 7, 2012 at 3:09 PM, Ferruh Yigit <fery@xxxxxxxxxxx> wrote: > From: Ferruh YIGIT <fery@xxxxxxxxxxx> > > This driver is for Cypress TrueTouch(tm) Standard Product controllers, > Generation4 devices. > > Driver consist of four main modules: > > Bus driver: Linux bus driver implementation, binds other modules. > Core driver: Core module that communicate with TTSP controller. > MT driver: MultiTouch driver, converts touch information to host specific > touch events > Adapter driver: Communication adapter between host and controller, like > I2C or SPI. > > This is Cyttsp4 TTSP Bus Driver, > Provides binding between Adapter, Core, and TTSP Modules. > > A complete set of corresponding Adapter, Core, and TTSP module > devices and drivers must be registered with the TTSP Bus handler > Hi Ferruh, There is already a driver in the kernel that supports Cypress TrueTouch(TM) Standard Product (TTSP) controllers Generation3 (Cypress Txx3xx parts). The driver has a similar architecture that yours and it has a generic driver to control the device and a driver for each communication bus used to communicate with the controller. Drivers for SPI and I2C data buses are already implemented. The drivers are: drivers/input/touchscreen/cyttsp_core.c drivers/input/touchscreen/cyttsp_i2c.c drivers/input/touchscreen/cyttsp_spi.c This driver was original developed by Kevin for Android and used multi-touch protocol type A. Since the hardware is able to track contacts by hardware I added protocol type B support and cleaned the driver to be merged on mainline. I wonder how big is the delta between cyttsp Gen3 and cyttsp Gen4 and if both drivers could be merged or at least refactored to reuse some common code. I don't have the specification for any of the device families but by looking at your code it seems that this may be possible. Thanks a lot and best regards, Javier -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
