Feb. 7, 2013
6:13 p.m.
On Thu, 07 Feb 2013 16:19:33 +0800, horseriver said:
hi:)
I am curious about how hd controller work . When user am reaing/writing hd ,it was implemented by sending command to hd controller's special port.Then ,how does the controller know a new command has received?
In this procedure , what work does the hd driver do ?
You may wish to get a copy of 'Linux Device Drivers, 3rd Edition' and read it before posting lots of questions here. A free version is available online, and last I checked it was the very first hit if you google for 'Linux device drivers".