diff options
Diffstat (limited to 'share/man/man9/pci.9')
| -rw-r--r-- | share/man/man9/pci.9 | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/share/man/man9/pci.9 b/share/man/man9/pci.9 index 781614c..21dfbbe 100644 --- a/share/man/man9/pci.9 +++ b/share/man/man9/pci.9 @@ -25,7 +25,7 @@ .\" .\" $FreeBSD$ .\" -.Dd January 22, 2005 +.Dd September 30, 2007 .Dt PCI 9 .Os .Sh NAME @@ -39,6 +39,7 @@ .Nm pci_set_powerstate , .Nm pci_get_powerstate , .Nm pci_find_bsf , +.Nm pci_find_dbsf , .Nm pci_find_device .Nd PCI bus interface .Sh SYNOPSIS @@ -65,6 +66,8 @@ .Ft device_t .Fn pci_find_bsf "uint8_t bus" "uint8_t slot" "uint8_t func" .Ft device_t +.Fn pci_find_dbsf "uint32_t domain" "uint8_t bus" "uint8_t slot" "uint8_t func" +.Ft device_t .Fn pci_find_device "uint16_t vendor" "uint16_t device" .Sh DESCRIPTION The @@ -198,6 +201,30 @@ The number actually refers to the number of the device on the bus, which does not necessarily indicate its geographic location in terms of a physical slot. +Note that in case the system has multiple PCI domains, +the +.Fn pci_find_bsf +function only searches the first one. +Actually, it is equivalent to: +.Bd -literal -offset indent +pci_find_dbsf(0, bus, slot, func); +.Ed +.Pp +The +.Fn pci_find_dbsf +function looks up the +.Vt device_t +of a PCI device, given its +.Fa domain , +.Fa bus , +.Fa slot , +and +.Fa func . +The +.Fa slot +number actually refers to the number of the device on the bus, +which does not necessarily indicate its geographic location +in terms of a physical slot. .Pp The .Fn pci_find_device |
