> If I have a driver with dynamic major number, it won't know it's major
> number until after it's loaded into the kernel. Is there any
> standarized ways of retrieving it's major number, so the special file
> in the /dev directory can be updated?
You can grep for its name in /proc/devices, and create your /dev
nodes based on that.
I'm sending you one such script privately.
> [...] Is there any ways to automate this? I.e. I call a function
> before I enter this loop that sais: "It's OK to switch
> process/context when appropriate", so I don't have to worry about
> locking the whole kernel.
Yes. You can change current->state to TASK_INTERRUPTIBLE, and then
call schedule(). If a process is wating for processor time, it will
get it. Change back current->stat to TASK_RUNNING when you are done.
The kernel is full of such examples.
/alessandro
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