97cc26576f
This patch adds support for LEDs connect to a nvec. A single brightness property is exported to sysfs. LEDs are selected via bitfields in the brightness value. Also the blinking behavior is selected through this method. Vendors may use different values for different HW designs. Signed-off-by: Ilya Petrov <ilya.muromec@gmail.com> Signed-off-by: Marc Dietrich <marvin24@gmx.de> [jak@jak-linux.org: Fixed checkpatch warnings] 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> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| README | ||
| TODO | ||
| nvec-keytable.h | ||
| nvec.c | ||
| nvec.h | ||
| nvec_kbd.c | ||
| nvec_leds.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