PCI拡張デバイスの表示

  
PCIデバイスの表示
[root@localhost ~]# lspci
00:00.0 Host bridge: Intel Corporation N10 Family DMI Bridge (rev 02)
00:02.0 VGA compatible controller: Intel Corporation N10 Family Integrated Graphics Controller (rev 02)
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 01)
00:1c.1 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 2 (rev 01)
00:1c.2 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 3 (rev 01)
00:1c.3 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 4 (rev 01)
00:1d.0 USB Controller: Intel Corporation N10/ICH7 Family USB UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation NM10 Family LPC Controller (rev 01)
00:1f.2 IDE interface: Intel Corporation N10/ICH7 Family SATA IDE Controller (rev 01)
00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 01)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)

-v オプションでIRQとI/O portsが重複してないか確認できる。
[root@localhost ~]# lspci -v
 00:1d.3 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 01) (prog-if 00 [UHCI])
        Subsystem: Intel Corporation Unknown device 4f4d
        Flags: bus master, medium devsel, latency 0, IRQ 177
        I/O ports at 3020 [size=32]

表示内容は長いから割愛。
主なデバイスはEthernet、サウンド、USBコントローラ、PCIブリッジ、VGAなど
PCを最初にセットアップする際に入れるドライバ類と覚えよう。

まとめ　下記ファイルの役割を言える様になろう

/proc/pci
/proc/ipports
/proc/dma
/proc/interrupts