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History

Marc Dietrich 9feeb0147f staging: nvec: send suspend messages synchronously The suspend commands need to be sent using the synchronous method, otherwise the power gets disabled before the messages are transferred. Signed-off-by: Marc Dietrich <marvin24@gmx.de> [jak@jak-linux.org: Rewrote commit message] Signed-off-by: Julian Andres Klode <jak@jak-linux.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2011-09-29 17:41:40 -07:00
..
Kconfig	staging: nvec: fix Kconfig dependencies	2011-09-29 17:40:40 -07:00
Makefile	staging: nvec: add LED support	2011-09-29 17:40:38 -07:00
nvec_kbd.c	staging: nvec: Enable the capslock LED in the keyboard driver	2011-09-29 17:41:34 -07:00
nvec_leds.c	staging: nvec: add LED support	2011-09-29 17:40:38 -07:00
nvec_power.c	staging: nvec: coding style fixes / add copyright notice	2011-09-29 17:40:37 -07:00
nvec_ps2.c	staging: nvec: ps2: Always sample 4 bytes instead of just 1	2011-09-29 17:41:38 -07:00
nvec-keytable.h	staging: nvec: coding style fixes / add copyright notice	2011-09-29 17:40:37 -07:00
nvec.c	staging: nvec: send suspend messages synchronously	2011-09-29 17:41:40 -07:00
nvec.h	staging: nvec: Add missing includes and reorder them	2011-09-29 17:41:39 -07:00
README
TODO	staging: nvec: update ToDo list	2011-09-29 17:40:39 -07:00

README

NVEC: An NVidia compliant Embedded Controller Protocol Implemenation

This is an implementation of the NVEC protocol used to communicate with an
embedded controller (EC) via I2C bus. The EC is an I2C master while the host
processor is the I2C slave. Requests from the host processor to the EC are
started by triggering a gpio line.

There is no written documentation of the protocol available to the public,
but the source code[1] of the published nvec reference drivers can be a guide.
This driver is currently only used by the AC100 project[2], but it is likely,
that other Tegra boards (not yet mainlined, if ever) also use it.

[1] e.g. http://nv-tegra.nvidia.com/gitweb/?p=linux-2.6.git;a=tree;f=arch/arm/mach-tegra/nvec;hb=android-tegra-2.6.32
[2] http://gitorious.org/ac100, http://launchpad.net/ac100