RVMTD驱动框架分析

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紫色部分是不同模块之间的转换函数。

实现代码 fs jffs2 supper.c

[root@arm-linux]#mount -t jffs2 /dev/mtdblock4 /media/userdata/[  671.810735] =1= mount_mtd[  671.810897] =2= mount_mtd[  671.810928] =51= mount_mtd[  671.811788] =52= mount_mtd[  671.811858] =53= mount_mtd[  671.811887] =1=mount_mtd_nr[  671.811920] get_mtd_device num=4[  671.811947] =2=get_mtd_device num=4[  671.811976] =41=get_mtd_device num=4[  671.812003] =1=__get_mtd_device[  671.812027] =4=get_mtd_device err=0[  671.812053] =5=get_mtd_device num=4[  671.812082] =2=mount_mtd_nr[  671.812108] =1=mount_mtd_aux[  671.815272] =2=mount_mtd_aux[  671.815306] =3=mount_mtd_aux[  672.146965] =4=mount_mtd_aux

尚不知道实现代码位置

[root@arm-linux]#cat /proc/partitions major minor  #blocks  name  31        0         28 mtdblock0  31        1        192 mtdblock1  31        2       6144 mtdblock2  31        3       9216 mtdblock3  31        4       1024 mtdblock4 179        0   15558144 mmcblk0 179        1   15554048 mmcblk0p1

mtdcore.c

[root@arm-linux]#cat /proc/mtd dev:    size   erasesize  namemtd0: 00007000 00010000 "vendor"mtd1: 00030000 00010000 "IDBlock"mtd2: 00600000 00010000 "kernel"mtd3: 00900000 00010000 "rootfs"mtd4: 00100000 00010000 "parameters"

mtdchar.c

[root@arm-linux]#cat /proc/filesystems nodev   sysfsnodev   rootfsnodev   bdevnodev   procnodev   tmpfsnodev   devtmpfsnodev   debugfsnodev   sockfsnodev   pipefsnodev   anon_inodefsnodev   configfsnodev   devpts        squashfsnodev   ramfs        vfat        msdos        exfatnodev   jffs2nodev   mtd_inodefsnodev   functionfs

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