device driver

["V.Kugan" <kugan@xxxxxxxxxxxxx>]

I am very new device drivrer.
I asked few questiobs earlier as well but no answer :(, may be they are too
trival.
Now i have seen some char diver deining file_operation structer and some
tty_driver, how do i no what to select?? can anyone pls answer this.
And also is there any news group for discussing general device driver
related questions for linux , may be i should see that archive.
Thank you very much.
V.Kugan