linux

History

Leon Romanovsky 167bf09e2e staging: nvec: Convert to use devm_input_allocate nvec_kbd is converted to use devm_input_allocate. This simplifies error handling and remove path. Signed-off-by: Leon Romanovsky <leon@leon.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2013-05-16 16:04:31 -07:00
..
Kconfig	staging: nvec: allow modular build	2013-04-23 10:34:20 -07:00
Makefile	staging: nvec: rename led driver to board specific paz00 driver	2012-06-25 10:55:38 -07:00
nvec_kbd.c	staging: nvec: Convert to use devm_input_allocate	2013-05-16 16:04:31 -07:00
nvec_paz00.c	staging: nvec: remove use of __devexit	2012-11-21 14:23:51 -08:00
nvec_power.c	staging: nvec: cleanup childs on remove	2013-05-13 17:51:38 -04:00
nvec_ps2.c	staging: nvec: cleanup childs on remove	2013-05-13 17:51:38 -04:00
nvec-keytable.h	staging: nvec: coding style fixes / add copyright notice	2011-09-29 17:40:37 -07:00
nvec.c	drivers/staging/nvec: don't check resource with devm_ioremap_resource	2013-05-16 15:42:29 -07:00
nvec.h	staging: nvec: implement unregistering of notifiers	2013-05-13 17:50:06 -04:00
README
TODO	staging: nvec: remove use of clk_get_sys	2013-01-28 11:19:33 -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