Signed-off-by: Rosen Penev <rosenp@gmail.com>

This removes Python-related build variants, and adds
PYTHON3_PKG_BUILD:=0 and minor build adjustments (where appropriate),
for non-Python packages. There should be no changes to build output.

This also updates some include paths for python3-package.mk and/or
python3-host.mk to be relative to the package Makefile.

Signed-off-by: Jeffery To <jeffery.to@gmail.com>

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

While at, fix minor nitpick during installation of library symlinks.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

While at, update SPDX identifier.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

Now that we only use kernel versions that support libgpiod,
we can remove the dependency on the kernel version.

This enables libgpiod to be used with linux 4.19.

Signed-off-by: Martin Schiller <ms@dev.tdt.de>

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

Required kernel interface was introduced in kernel v4.8,
so add the kernel version as dependency for this library.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

libgpiod is a C library with corresponding tools for interacting
with the linux GPIO character device (gpiod stands for GPIO device).

Since linux 4.8 the GPIO sysfs interface is deprecated. User space should use
the character device instead. This library encapsulates the ioctl calls and
data structures behind a straightforward API.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>