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Ethtool can already retrieve information from a transceiver module EEPROM by invoking the ethtool_ops::get_module_eeprom_by_page operation. Add a corresponding operation that allows ethtool to write to a transceiver module EEPROM. The new write operation is purely an in-kernel API and is not exposed to user space. The purpose of this operation is not to enable arbitrary read / write access, but to allow the kernel to write to specific addresses as part of transceiver module firmware flashing. In the future, more functionality can be implemented on top of these read / write operations. Adjust the comments of the 'ethtool_module_eeprom' structure as it is no longer used only for read access. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Danielle Ratson <danieller@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> 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 reStructuredText 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.