JFFS2 flash device control. More...

#include <jffs2.h>

Data Fields
uint32_t	block_size
	The size in bytes of the erasable unit of the flash device.

uint32_t	flash_size
	The size in bytes of the flash device.

uint32_t	write_size
	The size in bytes of the minimum write size for the flash device.

rtems_jffs2_flash_read	read
	Read from flash operation.

rtems_jffs2_flash_write	write
	Write to flash operation.

rtems_jffs2_flash_erase	erase
	Flash erase operation.

rtems_jffs2_flash_block_is_bad	block_is_bad
	Flash bad block check operation.

rtems_jffs2_flash_block_mark_bad	block_mark_bad
	Flash bad block mark operation.

rtems_jffs2_flash_oob_write	oob_write
	Flash oob bytes write operation.

rtems_jffs2_flash_oob_read	oob_read
	Flash oob bytes read operation.

rtems_jffs2_flash_get_oob_size	get_oob_size
	Flash get oob bytes per page operation.

rtems_jffs2_flash_destroy	destroy
	Flash destroy operation.

dev_t	device_identifier
	The device identifier of the flash device.

rtems_jffs2_trigger_garbage_collection	trigger_garbage_collection
	Trigger garbage collection operation.

Detailed Description

JFFS2 flash device control.

Field Documentation

◆ destroy

rtems_jffs2_flash_destroy rtems_jffs2_flash_control::destroy

Flash destroy operation.

This operation is optional and the pointer may be NULL.

◆ device_identifier

dev_t rtems_jffs2_flash_control::device_identifier

The device identifier of the flash device.

It is used in combination with the inode number to uniquely identify a file system node in the system.

◆ flash_size

uint32_t rtems_jffs2_flash_control::flash_size

The size in bytes of the flash device.

It must be an integral multiple of the block size. The flash device must have at least five blocks.

◆ trigger_garbage_collection

rtems_jffs2_trigger_garbage_collection rtems_jffs2_flash_control::trigger_garbage_collection

Trigger garbage collection operation.

This operation is optional and may be NULL. This operation should wake up a garbage collection thread. The garbage collection thread should use the RTEMS_JFFS2_ON_DEMAND_GARBAGE_COLLECTION IO control to carry out the work.

◆ write_size

uint32_t rtems_jffs2_flash_control::write_size

The size in bytes of the minimum write size for the flash device.

It must be an integral divisor into the block size. This is only applicable for NAND devices.

The documentation for this struct was generated from the following file:

cpukit/include/rtems/jffs2.h