loader tunables for modules

[Lara & Harti Brandt]

Alexander Langer wrote:

> How would one give flags to kernel modules?
> 
> I.e. a kernel module I wrote starts a kernel thread.  It should be
> controlable what kernel thread it starts depending on a sysctl.
> Of course the sysctl isn't available before the module is loaded.
> 
> So is there a way to pass a kernel module options to the load-handler,
> as it is the case for the linux modprobe?
> 
> For statically drivers in the kernel this can be done by a r/o loader
> tunable, but I really want to have a module.


It turns out that kenv is just handy for this. I use it to pass 
debugging information and configuration info to the ATM drivers. And you 
can set kenv entries from the loader and the shell.

harti