In order to access a specific flash device and put a filesystem on top of it, the MTD subsystem needs to be compiled into the kernel.
为了访问特定的闪存设备并将文件系统置于其上，需要将mtd子系统编译到内核中。
The Linux kernel USES the Memory Technology device (MTD) interface, which is a generic interface for flash devices.
Linux内核使用内存技术设备(Memory Technology Device, MTD)接口，这是针对flash系统的通用接口。
The MTD can automatically detect the width of the flash device bus and the number of devices necessary for implementing the bus width.
MTD 可以自动检测 flash 设备总线的宽度以及实现总线宽度所需设备的数量。
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