PSARC 2008/591 PCI Device Detection on FreeBSD

[Frank Che]

Ceri Davies wrote:
>>     Interfaces Imported:
>>
>>     ------------------------------------------------------------------
>>     | OS Type | Interface     | Purpose                              |
>>     ------------------------------------------------------------------
>>     | FreeBSD | /dev/pci      | Scan file /dev/pci to read PCI       |
>>     |         | PCIOCREAD     | device data                          |
>>     ------------------------------------------------------------------
>>     
>
> FWIW, I think you'll need to use PCIOGETCONF as well.
>
> Ceri
>   
Both interfaces are OK for this project to get the PCI device 
information that the product required. The PCIOGETCONF interface is even 
more easy to implement. The reason the project team selected the 
PCIOCREAD interface is that, the PCIOGETCONF interface was broken 
between recent major releases as described in the FreeBSD release 
document. To use one binary to cover all recent FreeBSD releases, the 
project team selected the PCIOCREAD interface.

Frank.