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2cfb2180c3
There are some hw configuration where irq0 and/or irq1 pins are not connected to the SPI or I2C/I3C controller. In order to avoid polling the output register introduce iio-sw trigger support when irq line is not available (or hw FIFO is not supported). Suggested-by: Mario Tesi <mario.tesi@st.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/93ae6ff1150b531a9d7a4d3d1b1adb8383613717.1666955685.git.lorenzo@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.