Does this library call _PIC(1)

[ChocolateLoverRaj]

I am investigating why eHCI interrupts aren't working in my OS. The AML interpreter is saying IRQs are [0] for eHCI. Manually going through the ACPI tables on my computer (Lenovo Ideapad Z560), the GSI should be 0x10. I think this might be because of a missing call to \_SB._PIC. Does this library call it, or does my OS need to call it (using this library)?

[ChocolateLoverRaj]

I found out that this library does not call _PIC(1), and after explicitly calling _PIC(1), the AML interpreter returned [0x10] for the interrupts and my OS received eHCI interrupts on GSI 0x10!