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SubjectRe: [RFC PATCH 00/11] input: Synaptics RMI4 Touchscreen Driver
On Wed, Dec 21, 2011 at 06:09:51PM -0800, Christopher Heiny wrote:
> This patch implements a driver supporting Synaptics ClearPad and other
> touchscreen sensors that use the RMI4 protocol, as defined here:
>
> http://www.synaptics.com/sites/default/files/511-000136-01-Rev-E-RMI4%20Intrfacing%20Guide.pdf
>
> as well as successor documents that haven't made their way through to
> publication yet.
>
> This code represents a complete refactoring and rewrite of the previously
> submitted patches, and supersedes all those patches. We believe that all
> outstanding issues arising from the previous submissions have been addressed.
> However, because of the quantity of new code, we are submitting this patch
> as an RFC and requesting feedback from the kernel community.
>
>
> This patch is against the v2.6.38 tag of Linus' kernel tree, commit
> 521cb40b0c44418a4fd36dc633f575813d59a43d.
>
>
> Included in this patch are:
> - full support for an RMI virtual bus as a standard kernel bus
>
> - physical layer implementations for I2C and SPI
>
> - function implementations for the following RMI4 functions:
> * F01 device control
> * F09 self test (aka BIST)
> * F11 multifinger pointing
> * F19 capacitive buttons
> * F34 device reflash
> * F54 analog data reporting
>
> - character device access to the RMI4 register map via rmidev

Could you please tell me why this facility is needed?

--
Dmitry


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