Date: Sat, 6 Jul 2013 10:19:40 -0300 From: "Dr. Rolf Jansen" <rj@cyclaero.com> To: "Cedric GROSS" <cg@cgross.info> Cc: freebsd-drivers@freebsd.org Subject: Re: PCI Subdevice ID Message-ID: <67773F40-53B0-4572-8357-ADE11941C09B@cyclaero.com> In-Reply-To: <001a01ce7a38$6ce642b0$46b2c810$@info> References: <000c01ce7a34$ebd49a30$c37dce90$@info> <8982B63C-525E-4B3E-9DA1-F2535AFE4A22@cyclaero.com> <001a01ce7a38$6ce642b0$46b2c810$@info>
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Am 06.07.2013 um 08:03 schrieb "Cedric GROSS" <cg@cgross.info>:
> ... I'm looking for a kernel function like 'pci_get_device' but for subdevice
The pci_get_*** macros are defined in /usr/src/sys/dev/pci/pcivar.h below line 220.
The expanded macro for getting the sub-device number is:
static __inline uint16_t pci_get_subdevice(device_t dev)
{
uintptr_t v;
BUS_READ_IVAR(device_get_parent(dev), dev, PCI_IVAR_SUBDEVICE, &v);
return ((uint16_t) v);
}
Best regards
Rolf
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