Serial Peripheral Interface (SPI)

wikipedia:Serial Peripheral Interface can be used to connect a wide variety of peripherals - displays, network controllers (Ethernet, CAN bus), UARTs, etc

/sys/bus/spi/devices/spi?

• SCLK
• MOSI
• MISO

See also

• Firewire
• Ethernet In-Band Access (IBA)
• UART
• Serial, SPI, virsh console
• Ethernet: MII, MDI, bonding, etherchannel, STP, ARP, MAC, STP, Jumbo frames, 802.1X, MTU, Ethernet In-Band Access (IBA), LACP, Multicast, Broadcast, SPI