Process · Embedded Software & Tools
PCIe enumeration
The boot-time process of scanning PCIe buses, reading configuration space, assigning bus numbers and allocating BAR address windows and interrupts to each function.
On embedded hosts it must complete before any endpoint driver can bind.
- Also known as
- PCI bus scan, PCIe discovery
- Type
- Process
- Domain
- Embedded Software & Tools, Embedded Linux and drivers
Notes
Insufficient address window in the host bridge is a frequent embedded failure, appearing as a device that enumerates but gets no BAR.
Related terms
Part of the Embedded Software & Tools glossary, with every term in the topic and the lifecycles, tools and standards that use them.
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