hello frank ！
the question i asked is met in my job...
things like this :
i wrote a charactor device driver , it can do "some" handlings to
"some" file by
"file path".
we consume dirve named xxx
problem1: I did this: "ln -s /tmp/xxx /kernel/drv/sparcv9" then
"add_drv xxx"
that's ok.
But i want the driver to be loaded by itself when computer start.
So i put xxx into /kernel/drv/sparcv9/ . then i reboot, then i
check the
/var/adm/messages, i found the driver first "attach" then "detach"
right
now. "add_drv xxx"shows the driver has been loaded already.
"modinfo | grep xxx" shows nothing, "rem_drv xxx" success...........
So i think i should do this :
"vi /etc/init.d/xxx.sh" then put "add_drv xxx" into xxx.sh.then
"ln -s /etc/init.d/xxx.sh /etc/rc2.d/S99xxx"
then reboot , but results just like before , it "attach" and"
detach"..
why???
problem2: because my driver act by "file path" , as follows:
my driver do different handling between dir1 and dir2. consum that
it
encrypt the file in dir2.
if we "mv xx/dir1/file1 xx/dir2/file2" we will can not encrypt
the file2...
the driver get the file path just by "open” syscall...
so i want to know the exaclly relationship between vnode and
pathname.
because i need a idear to correct the information by myself...
can i just flush dnlc of dir2? and how?？
so i need help....
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