[patch] prevent atkbd(4) from calling callback in polled mode

[Fabian Keil]

Maksim Yevmenkin <maksim.yevmenkin at gmail.com> wrote:

> would anyone object to the small attached atkbd(4) patch? the idea is
> to basically prevent atkbd(4) interrupt handler from calling keyboard
> callback function when polled mode is enabled.
> 
> i would really like to hear from people who is using kbdmux(4) on smp
> systems and having problems with duplicated/missing characters while
> using keyboard at mountroot, geli, etc. prompts. basically, when low
> level console input functions (cngetc(), gets(), etc.) are used _and_
> interrupts are enabled.

Thanks. This version of your patch works for me, too.

Fabian
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