27 lines
1008 B
ReStructuredText
27 lines
1008 B
ReStructuredText
====================
|
|
``media`` Media test
|
|
====================
|
|
|
|
The media test simply writes values onto the media hidden behind a character
|
|
driver and verifies that the media can be successfully written and read. This
|
|
low level test is useful in the early phases of the bringup of a new block or
|
|
mtd driver because it avoids the complexity of a file system.
|
|
|
|
This test uses a character driver and cannot directly access block or mtd
|
|
drivers. This test is suitable for use EEPROM character drivers (see
|
|
``nuttx/drivers/eeprom``), or with block drivers wrapped as character drivers (see
|
|
``nuttx/drivers/bch``)
|
|
|
|
.. code-block:: C
|
|
|
|
int ret = bchdev_register(<path-to-block-driver>, <path-to-character-driver>,
|
|
false);
|
|
|
|
MTD drivers need an additional wrapper layer, the FTL wrapper must first be used
|
|
to convert the MTD driver to a block device:
|
|
|
|
.. code-block:: C
|
|
|
|
int ret = ftl_initialize(<N>, mtd);
|
|
ret = bchdev_register(/dev/mtdblock<N>, <path-to-character-driver>, false);
|