PCI_FIND_CAPABILITY(9) Hardware Interfaces PCI_FIND_CAPABILITY(9)NAME
pci_find_capability - query for devices' capabilities
int pci_find_capability(struct pci_dev * dev, int cap);
PCI device to query
Tell if a device supports a given PCI capability. Returns the address of the requested capability structure within the device's PCI
configuration space or 0 in case the device does not support it. Possible values for cap:
PCI_CAP_ID_PM Power Management PCI_CAP_ID_AGP Accelerated Graphics Port PCI_CAP_ID_VPD Vital Product Data PCI_CAP_ID_SLOTID Slot
Identification PCI_CAP_ID_MSI Message Signalled Interrupts PCI_CAP_ID_CHSWP CompactPCI HotSwap PCI_CAP_ID_PCIX PCI-X PCI_CAP_ID_EXP PCI
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 PCI_FIND_CAPABILITY(9)
Check Out this Related Man Page
PCITWEAK(1) General Commands Manual PCITWEAK(1)NAME
pcitweak - read/write PCI config space
pcitweak -r PCI-ID [-b|-h] offset
pcitweak -w PCI-ID [-b|-h] offset value
Pcitweak is a utility that can be used to examine or change registers in the PCI configuration space. On most platforms pcitweak can only
be run by the root user.
OPTIONS -l Probe the PCI buses and print a line for each detected device. Each line contains the bus location (bus:device:function), chip
vendor/device, card (subsystem) vendor/card, revision, class and header type. All values printed are in hexadecimal.
Read the PCI configuration space register at offset for the PCI device at bus location PCI-ID. PCI-ID should be given in the form
bus:device:function, with each value in hexadecimal. By default, a 32-bit register is read.
Write value to the PCI configuration space register at offset for the PCI device at bus location PCI-ID. PCI-ID should be given in
the form bus:device:function, with each value in hexadecimal. By default, a 32-bit register is written.
-b Read or write an 8-bit value (byte).
-h Read or write a 16-bit value (halfword).
SEE ALSO scanpci(1)AUTHORS
David Dawes (firstname.lastname@example.org).
XFree86 Version 4.7.0 PCITWEAK(1)
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