I have a question, what is really difference between serial and tty drivers?
As I understand tty is high level and communicates with user space.
Thank you
Mockern wrote:
> I have a question, what is really difference between serial and tty drivers?
> As I understand tty is high level and communicates with user space.
That's pretty much it, yes. When you're talking to a serial port, you
have a stack that looks roughly like:
(Userspace)
VFS layer
tty layer ----------------------\
serial core layer line discipline
serial driver
(Hardware)
There are other devices which can exist below the tty layer, like the
pty driver:
(Userspace)
VFS layer
tty layer ----------------------\
pty driver line discipline
-hpa