求源码，急！谢谢

hlf1099210 · 发表于 2003-5-26 22:22:17

[quote:133c74604a="Dragonfly"][quote:133c74604a="hlf1099210"]能给我一个QQ吗？这儿说的有点不清楚，这事我挺急的，谢谢

我的QQ事23768873[/quote]

i have no qq, maybe jjww has[/quote]

can you tell me his qq
i have lots of question to ask .
thanks!

Dragonfly · 发表于 2003-5-26 22:23:12

i have no qq, so i do not know anybody's qq. i said "maybe jjww has"

hlf1099210 · 发表于 2003-5-26 22:28:17

what my choise is 2)
can you tell me how to do it without fs on it
then how can i read data from certain sectors

hlf1099210 · 发表于 2003-5-26 22:29:51

[quote:af2a993bda="Dragonfly"]i have no qq, so i do not know anybody's qq. i said "maybe jjww has"[/quote]

too bad!
then how can i connect with you ?
i really need your help!

Dragonfly · 发表于 2003-5-26 22:37:08

do u have msn? if so, tell me via message.

Dragonfly · 发表于 2003-5-26 22:38:27

jjww, pls move this to another kernel branch, this is nothing to do with kernel source code reading.

hlf1099210 · 发表于 2003-5-26 22:48:27

[quote:5365d00d8f="hlf1099210"]what my choise is 2)
can you tell me how to do it without fs on it
then how can i read data from certain sectors[/quote]

this my last question,can you help me ?

thanks very much!

hlf1099210 · 发表于 2003-5-26 22:49:40

just give me an example ,thanks,thanks,thanks

rambler · 发表于 2003-5-26 22:54:12

[quote:aa207c13eb="Dragonfly"]jjww, pls move this to another kernel branch, this is nothing to do with kernel source code reading.[/quote]
yes，i think so !

Dragonfly · 发表于 2003-5-26 23:00:10

hlf1099210, if u choice is 2) then jjww's code is enough, u only need change that /dev/sda to /dev/fd0 or whatever fd u want, and follow the same rule of open, seek, write, and close. that's all.

rambler, u are watering here.

hlf1099210 · 发表于 2003-5-26 23:12:01

thank you very much!!

Dragonfly · 发表于 2003-5-26 23:16:42

welcome.

in linux, almost everything is a file. open a /dev/fd0 will open a device file and write directly on it. then u can use lseek to change the offset and read/write directly.

hlf1099210 · 发表于 2003-5-26 23:22:46

jjww's code is good,but i am not very understand in some places.

#define MY_OFFSET (3 * 512) /*what is 3 mean?

thank you

Dragonfly · 发表于 2003-5-26 23:28:53

his code writes a 512 byte data to 3rd sector, so he need lseek 3*512 byte, see the MY_OFFSET use in lseek.

are u familiar with c, with open/close/lseek/read/write, if not man them one by one and read the help carefully can help u

hlf1099210 · 发表于 2003-5-26 23:35:02

# dd if=/dev/sda of=file skip=3 count=1
# hexdump file
what is them means?

thanks

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