acrn-kernel

History

Dan Carpenter 6330f9cf34 staging: nvec: potential NULL dereference on error path We assume nvec->rx can be NULL earlier so I have added a check here as well. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2013-11-25 09:14:29 -08:00
..
Kconfig	drivers/staging/nvec/Kconfig: remove trailing whitespace	2013-10-30 09:24:40 -07:00
Makefile	…
README	…
TODO	…
nvec-keytable.h	…
nvec.c	staging: nvec: potential NULL dereference on error path	2013-11-25 09:14:29 -08:00
nvec.h	…
nvec_kbd.c	…
nvec_paz00.c	…
nvec_power.c	…
nvec_ps2.c	…

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