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9a8a02c9d4
This adds support for Flexible PPS output (which is equivalent to per_out output of PTP subsystem). Tested using an oscilloscope and the following commands: 1) Start PTP4L: # ptp4l -A -4 -H -m -i eth0 & 2) Set Flexible PPS frequency: # echo <idx> <ts> <tns> <ps> <pns> > /sys/class/ptp/ptpX/period Where, ts/tns is start time and ps/pns is period time, and ptpX is ptp of eth0. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Vitor Soares <soares@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.