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| author |   Marc Dietrich <marvin24@gmx.de> | 2011-05-19 16:34:42 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2011-05-19 15:36:10 -0700 |
| commit | 32890b983086136fef8721363a2d3860f337ad53 (patch) | |
| tree | 123350f6002cf23fb2367d96bfe9dcbd93ffeb57 /drivers/staging/nvec/README | |
| parent | Staging: sm7xx: printk loglevels modified to match the scenario (diff) | |
| download | linux-dev-32890b983086136fef8721363a2d3860f337ad53.tar.xz linux-dev-32890b983086136fef8721363a2d3860f337ad53.zip | |
Staging: initial version of the nvec driver
This is an implementation of a NVidia compliant embedded controller
protocol driver. It is used on some ARM-Tegra boards for device
communication.
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/nvec/README')
| -rw-r--r-- | drivers/staging/nvec/README | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/staging/nvec/README b/drivers/staging/nvec/README new file mode 100644 index 000000000000..9a320b7fdbe6 --- /dev/null +++ b/drivers/staging/nvec/README @@ -0,0 +1,14 @@ +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 |