linux

mirror of https://github.com/torvalds/linux synced 2024-10-17 00:39:37 +00:00

History

Julian Andres Klode 8517e879e0 staging: nvec: Add is_event() and size() functions for nvec_msg Add functions nvec_msg_is_event() and nvec_msg_size() which do just what the say: tell whether the message is an event, and getting the size of the message. Signed-off-by: Julian Andres Klode <jak@jak-linux.org> Acked-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2011-09-29 17:41:33 -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-keytable.h	staging: nvec: coding style fixes / add copyright notice	2011-09-29 17:40:37 -07:00
nvec.c	staging: nvec: Add is_event() and size() functions for nvec_msg	2011-09-29 17:41:33 -07:00
nvec.h	staging: nvec: Introduce new internal API for msg alloc/free	2011-09-29 17:40:40 -07:00
nvec_kbd.c	staging: nvec: add LED support	2011-09-29 17:40:38 -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: coding style fixes / add copyright notice	2011-09-29 17:40:37 -07:00
README	Staging: initial version of the nvec driver	2011-05-19 15:36:10 -07:00
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