Int 1A Fn B10F  - Pci Bios V2.1+ - Set Pci Irq                             [X]

   AX = B10Fh
   BH = bus number
   BL = device/function number (bits 7-3 device, bits 2-0 function)
   CH = number of IRQ to connect
   CL = number of interrupt pin (0Ah=INTA# to 0Dh=INTD#) to reprogram
   DS = segment/selector for PCI BIOS data
       (real mode: F000h; 16-bit PM: physical 000F0000h; 32-bit PM: as
       specified by BIOS32 services directory)

Return: CF clear if successful
       AH = 00h
   CF set on error
       AH = error code (59h) (see #0939)

Note:  assumes that the calling application has determined the IRQ routing
     topology (see AX=B10Eh), has ensured that the selected IRQ will not
     cause a conflict, and will update the interrupt line configuration
     register on all devices which currently use the IRQ line

See Also: AX=B10Eh