ilsel_enable — Enable an ILSEL set.
int ilsel_enable ( | ilsel_source_t set); |
Enables a given non-aliased ILSEL source (<= ILSEL_KEY) at the highest
available interrupt level. Callers should take care to order callsites
noting descending interrupt levels. Aliasing FPGA and external board
IRQs need to use ilsel_enable_fixed.
The return value is an IRQ number that can later be taken down with
ilsel_disable.