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The AT24 EEPROM driver does not initialise the 'id' field of the nvmem_config structure and because the entire structure is not initialised, it ends up with a random value. This causes the NVMEM driver to append the device 'devid' value to name of the NVMEM device. Ideally for I2C devices such as the AT24 that already have a unique name, we would not bother to append the 'devid'. However, given that this has always been done for AT24 devices, we cannot remove the 'devid' as this will change the name of the userspace sysfs node for the NVMEM device. Nonetheless we should ensure that the 'id' field of the nvmem_config structure is initialised so that there is no chance of a random value causes problems in the future. Therefore, set the NVMEM config.id to NVMEM_DEVID_AUTO for AT24 EEPROMs so that the 'devid' is always appended. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> |
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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.