<dec f='src/src/sys/dev/acpi/acpi_pci.h' l='35' type='ACPI_STATUS acpi_pcidev_ppb_downbus(__uint16_t , __uint16_t , __uint16_t , __uint16_t , __uint16_t * )'/>
<use f='src/src/sys/dev/acpi/acpi_pci.c' l='293' u='c' c='acpi_pcidev_scan'/>
<def f='src/src/sys/dev/acpi/acpi_pci.c' l='325' ll='359' type='ACPI_STATUS acpi_pcidev_ppb_downbus(__uint16_t segment, __uint16_t bus, __uint16_t device, __uint16_t function, __uint16_t * downbus)'/>
<doc f='src/src/sys/dev/acpi/acpi_pci.c' l='316'>/*
 * acpi_pcidev_ppb_downbus:
 *
 *	Retrieve the secondary bus number of the PCI-to-PCI bridge having the
 *	given PCI id.  If successful, return AE_OK and fill *downbus.
 *	Otherwise, return an exception code and leave *downbus unchanged.
 *
 * XXX	Need to deal with PCI segment groups (see also acpica/OsdHardware.c).
 */</doc>
