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.\" $XFree86: xc/programs/Xserver/hw/xfree86/etc/pcitweak.man,v 3.3 2001/01/27 18:20:56 dawes Exp $
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.TH PCITWEAK 1 __vendorversion__
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pcitweak - read/write PCI config space
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is a utility that can be used to examine or change registers in the PCI
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configuration space. On most platforms
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can only be run by the root user.
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Probe the PCI buses and print a line for each detected device. Each line
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contains the bus location (bus:device:function), chip vendor/device, card
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(subsystem) vendor/card, revision, class and header type. All values
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printed are in hexadecimal.
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Read the PCI configuration space register at
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for the PCI device at bus location
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should be given in the form bus:device:function, with each value in
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hexadecimal. By default, a 32-bit register is read.
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to the PCI configuration space register at
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for the PCI device at bus location
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should be given in the form bus:device:function, with each value in
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hexadecimal. By default, a 32-bit register is written.
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Read or write an 8-bit value (byte).
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Read or write a 16-bit value (halfword).
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.RI ( dawes@xfree86.org ).