Date: Mon, 28 Nov 2005 16:14:38 +0100 From: des@des.no (=?iso-8859-1?q?Dag-Erling_Sm=F8rgrav?=) To: kylin <fierykylin@gmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: to list all the devices in freebsd &definition analyse Message-ID: <868xv8by8x.fsf@xps.des.no> In-Reply-To: <87ab37ab0511272036t60b22769sff7a201d4d3cf8f9@mail.gmail.com> (fierykylin@gmail.com's message of "Mon, 28 Nov 2005 12:36:50 %2B0800") References: <87ab37ab0511261855lfc5d062h7d394f25bcd00ec0@mail.gmail.com> <20051127.164001.61158282.imp@bsdimp.com> <87ab37ab0511272036t60b22769sff7a201d4d3cf8f9@mail.gmail.com>
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kylin <fierykylin@gmail.com> writes: > M. Warner Losh <imp@bsdimp.com> writes: > > devinfo -v > devinfo is different with pciconf > devinfo depends on the sysctl mechanism while pciconf ioctl the > /dev/pci who will directly read the pci configuration space there is more in life than pci. > > devclass is the information about all instances of the device. > > device_t is an instance of the device. The only difference between a > > bus and a device is that a bus has children. > but pcib and cbb still have pci or cardbus as there children ,and pcib > and cbb is bridge rather than bus :( > i am puzzle with the definition:( as far as the kernel is concerned, any devices that other devices attach to is a bus. > we who r about to die,salute u! please learn to spell. DES --=20 Dag-Erling Sm=F8rgrav - des@des.no
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