5c724e197e
The `insn_write` handler for the counter subdevices (`ni_tio_insn_write()`) writes a single data value `data[0]` to the channel. Technically, `insn->n` specifies the number of successive values from `data[]` to write to the channel, but when there is little benefit in writing multiple data values, the usual Comedi convention is to just write the last data value `data[insn->n - 1]`. Change the function to follow that convention and use `data[insn->n - 1]` instead of `data[0]`. (In practice, `insn->n` would normally be 1 anyway.) Also follow the usual Comedi convention and return `insn->n` from the handler to indicate success instead of 0 (although any non-negative return value will do). Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.