iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
d6bdcf2e10
linux/drivers/staging/nvec
History
Julian Andres Klode d6bdcf2e10 staging: nvec: Add battery quirk to ignore incomplete responses 
The nvec_power system polls nvec for battery information. In some
cases, that part seems to be overloaded and unable to respond
fast in which case it sends an incomplete response. We need to
mark the transfer as completed, though, in order to prevent
endless retries which can kill nvec.

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 17:41:38 -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: Add battery quirk to ignore incomplete responses 2011-09-29 17:41:38 -07:00
nvec.h staging: nvec: Export nvec_msg_free() to clients 2011-09-29 17:41:36 -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