CONFIG_MTD_BLOCK2MTD: MTD using block device

General informations

The Linux kernel configuration item CONFIG_MTD_BLOCK2MTD has multiple definitions:

MTD using block device found in drivers/mtd/devices/Kconfig

The configuration item CONFIG_MTD_BLOCK2MTD:

• prompt: MTD using block device
• type: tristate
• depends on: CONFIG_BLOCK
• defined in drivers/mtd/devices/Kconfig
• found in Linux kernels: 2.6.17–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD
• modules built: block2mtd

Help text

This driver allows a block device to appear as an MTD. It would generally be used in the following cases:

Using Compact Flash as an MTD, these usually present themselves to the system as an ATA drive. Testing MTD users (eg JFFS2) on large media and media that might be removed during a write (using the floppy drive).

MTD using block device (rewrite) found in drivers/mtd/devices/Kconfig

The configuration item CONFIG_MTD_BLOCK2MTD:

• prompt: MTD using block device (rewrite)
• type: tristate
• depends on: CONFIG_MTD && CONFIG_EXPERIMENTAL
• defined in drivers/mtd/devices/Kconfig
• found in Linux kernels: 2.6.11–2.6.16
• modules built: block2mtd

Help text

This driver is basically the same at MTD_BLKMTD above, but experienced some interface changes plus serious speedups. In the long term, it should replace MTD_BLKMTD. Right now, you shouldn't entrust important data to it yet.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module block2mtd CONFIG_MTD_BLOCK2MTD : drivers/mtd/devices/Kconfig : "MTD using block device" # in 2.6.11–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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