This is a very much work in progress clone of pciutils. The goal is to eventually match full functionality of pciutils library and the associated lspci and setpci command line utilities.
Currently only minimal functionality is supported. lspci command line utility exists and is able to discover capabilities.
$ sudo -E bash -c 'cargo run --bin lspci -- -vs2e:00.0'
Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Running `target/debug/lspci '-vs2e:00.0'`
2e:00.0 Non-Volatile memory controller: Solid State Storage Technology Corporation Device 3500 (rev 01)
Subsystem: Solid State Storage Technology Corporation Device 1092
Memory at 80600000 (64-bit, non-prefetchable)
Capabilities: [40] Power Management version 3
Capabilities: [50] Capability 0x5 at 0x50
Capabilities: [70] Capability 0x10 at 0x70
Capabilities: [b0] Capability 0x11 at 0xb0
Capabilities: [100] Capability 0x1 at 0x100
Capabilities: [148] Capability 0x3 at 0x148
Capabilities: [158] Capability 0x4 at 0x158
Capabilities: [168] Capability 0xe at 0x168
Capabilities: [178] Capability 0x19 at 0x178
Capabilities: [2b8] Capability 0x18 at 0x2b8
Capabilities: [2c0] Capability 0x1e at 0x2c0
Kernel driver in use: nvme
Kernel modules: nvme