# busybox ls -la /dev/block
drwxr-xr-x   3   0   0    700  May  15  04:34   .
drwxr-xr-x  11   0   0  12780  May  15  04:34   ..
brw-------   1   0   0  7,  0  May  15  04:34   loop0
brw-------   1   0   0  7,  1  May  15  04:34   loop1
brw-------   1   0   0  7,  2  May  15  04:34   loop2
brw-------   1   0   0  7,  3  May  15  04:34   loop3
brw-------   1   0   0  7,  4  May  15  04:34   loop4
brw-------   1   0   0  7,  5  May  15  04:34   loop5
brw-------   1   0   0  7,  6  May  15  04:34   loop6
brw-------   1   0   0  7,  7  May  15  04:34   loop7
brw-------   1   0   0 31,  0  May  15  04:34   mtdblock0
brw-------   1   0   0 31,  1  May  15  04:34   mtdblock1
brw-------   1   0   0 31,  2  May  15  04:34   mtdblock2
brw-------   1   0   0 31,  3  May  15  04:34   mtdblock3
brw-------   1   0   0 31,  4  May  15  04:34   mtdblock4
brw-------   1   0   0 31,  5  May  15  04:34   mtdblock5
brw-------   1   0   0 31,  6  May  15  04:34   mtdblock6
brw-------   1   0   0 31,  7  May  15  04:34   mtdblock7
brw-------   1   0   0  1,  0  May  15  04:34   ram0
brw-------   1   0   0  1,  1  May  15  04:34   ram1
brw-------   1   0   0  1, 10  May  15  04:34   ram10
brw-------   1   0   0  1, 11  May  15  04:34   ram11
brw-------   1   0   0  1, 12  May  15  04:34   ram12
brw-------   1   0   0  1, 13  May  15  04:34   ram13
brw-------   1   0   0  1, 14  May  15  04:34   ram14
brw-------   1   0   0  1, 15  May  15  04:34   ram15
brw-------   1   0   0  1,  2  May  15  04:34   ram2
brw-------   1   0   0  1,  3  May  15  04:34   ram3
brw-------   1   0   0  1,  4  May  15  04:34   ram4
brw-------   1   0   0  1,  5  May  15  04:34   ram5
brw-------   1   0   0  1,  6  May  15  04:34   ram6
brw-------   1   0   0  1,  7  May  15  04:34   ram7
brw-------   1   0   0  1,  8  May  15  04:34   ram8
brw-------   1   0   0  1,  9  May  15  04:34   ram9
drwxr-xr-x   2   0   0     40  May  15  04:34   vold

# busybox ls -la /dev | busybox grep mtd
drwxr-xr-x   2   0   0    360  May  15  04:34   mtd