FM / msi

/sys/devices/pci0000:00/0000:00:05.0/msi_irqs

Name	Size	Mode	Actions
29	4096	0444	edit dl rm
30	4096	0444	edit dl rm
31	4096	0444	edit dl rm
32	4096	0444	edit dl rm

Edit: /sys/devices/pci0000:00/0000:00:05.0/msi_irqs/31 (4096B)

msix