Transcription of Linux-PCI Support Programming PCI-Devices …
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Intendedtobea ..PCI-BridgePCI-BusPCI#0 PCI#nPCI#1 Figure1:TheArchitectureofthePCIS ubsystemThePeripheralComponentInterconne ct-Bus(PCI)todayis presentina widevarietyof thecom-pleteseparationof , specialcasesonlyonestartad-dressis transferredfollowedbya determinetheaddressforeachsingledata-wor dthePCI-BridgeandthePCI-Adapterincrement internalcounters, burst cy-clespeedsupthetransfersigni cantly(upto266 Mbyte/secfora 64bitdata-transfer).Thankstotheintellige nthandlingof schematicviewof thePCIsubsystemis usea Memoryforcon beplacedin therightplaces,soIRQor addresscon ictsarenolongera commonlyknownasPlug& ( ) linux -PCIS upportFirstContactwiththePCIsubsystemTo getanimpressionhowlinuxseesthePCIbusinyo urcomputertrygettingthePCIbuscon gurationfromthekernelwithcat /proc/pci. If everythingworksOKyouwill(hopefully)see:P CI devicesfound:Bus0, device12, function0:SCSI storagecontroller:AdaptecAIC-7881U(rev0) .
Linux-PCI Support First Contact with the PCI subsystem To get an impression how linux sees the PCI bus in your computer try getting the PCI bus conguration from the kernel with cat /proc/pci.
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