Tag: pci-e

Interrupt Handler Stops Working After Kernel Module Reload (Xilinx FPGA / PCIe)

fpga kernel-module linux linux-device-driver pci-e

I am currently working on a PCI driver for the Xilinx Kintex 7 board using the Xilinx PCI IP core (AXI Memory Mapped to PCIe). One problem is, that the interrupt handler stops working when I reload the kernel module. In more detail: Fresh boot of my machine Load the kernel module and monitor the kernel messages with dmesg /proc/interrupts

pci device info access in linux from userspace

linux linux-kernel pci-bus pci-e

I want to access the pci device tree information from user space programatically. Like the root complex and the devices connected to it. How can I do it please let me know. Regards, Pradeep Answer libpci or pcilib (on which lspci is based) uses sysfs, procfs, and possibly other means to access PCI information. You can check pciutils package source