Category: <b>expansion bus BIOSes</b>
<p>
<pre><b>INT 1A - PCI BIOS v2.1+ - GET IRQ ROUTING INFORMATION</b>

	AX = B10Eh
	BX = 0000h
	DS = segment/selector for PCI BIOS data
	    (real mode: F000h; 16-bit PM: physical 000F0000h; 32-bit PM: as
	    specified by BIOS32 services directory)
	ES:(E)DI -&gt; IRQ routing table header (see <a href=../../it/59/12.html>#01259</a> at AX=B406h)
Return: CF clear if successful
	    AH = 00h
	    BX = bit map of IRQ channels permanently dedicated to PCI
	    WORD ES:[DI] = size of returned data
	CF set on error
	    AH = error code (59h) (see <a href=../../it/43/12.html>#01243</a>)
	    WORD ES:[DI] = required size of buffer
SeeAlso: AX=B10Fh,AX=B406h,INT 2F/AX=1684h/BX=304Ch
</pre>