Re: to list all the devices in freebsd &definition analyse

From: Dag-Erling Smørgrav (des_at_des.no)
Date: 11/28/05

  • Next message: kylin: "Re: to list all the devices in freebsd &definition analyse" 
    To: kylin <fierykylin@gmail.com>
Date: Mon, 28 Nov 2005 16:14:38 +0100

    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 

    -- 
Dag-Erling Smørgrav - des@des.no
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