how to manipulate flash devices?

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my embeded board has installed two flash devices, when i compile my
kernel I selected all drivers refered to flash, but now I boot into
embeded system, and can't find flash devices, as my previous plan, I
wouldd manipulated flash such as format, fdisk, burned kernel image
into it .....etc. so what I shoud do to find the flash DEVICE?
when type: ls /dev/ftl*
sh-2.04# ls -al /dev/ftl*
brw-r--r--    1 root     root      44,   0 Jul  3  2006 /dev/ftla
brw-r--r--    1 root     root      44,   1 Jul  3  2006 /dev/ftla1
brw-r--r--    1 root     root      44,   2 Jul  3  2006 /dev/ftla2
brw-r--r--    1 root     root      44,   3 Jul  3  2006 /dev/ftla3
brw-r--r--    1 root     root      44,   4 Jul  3  2006 /dev/ftla4
brw-r--r--    1 root     root      44,  16 Jul  3  2006 /dev/ftlb
brw-r--r--    1 root     root      44,  17 Jul  3  2006 /dev/ftlb1
brw-r--r--    1 root     root      44,  18 Jul  3  2006 /dev/ftlb2
brw-r--r--    1 root     root      44,  19 Jul  3  2006 /dev/ftlb3
brw-r--r--    1 root     root      44,  20 Jul  3  2006 /dev/ftlb4
I guess both ftla and ftlb are thoes two flash, but I don't open them.
what's wrong? can anyone tell me how to use flash devices in normal
case? I'm embeded development newbie, please guide me a clue, thank you
very much.


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