Name:   iotg-rpi4-eeprom
Info:   Compulab IOTG-RPi4 EEPROM AT24C08 over I2C6 bus, address 0x54
        The EEPROM stores sensitive Manufacturing Data which should
        not be changed or modified
Load:   dtoverlay=iotg-rpi4-eeprom
Params: <None>

Name:   iotg-rpi4-gpio-exp
Info:   Compulab IOTG-RPi4 GPIO Expanders PCA9555 over I2C6 bus
         - #1: address 0x27: user LEDs, various RST signals for internal use
         - #2: address 0x21: IEx type detect signals
Load:   dtoverlay=iotg-rpi4-gpio-exp
Params: <None>

Name:   iotg-rpi4-rtc
Info:   Compulab IOTG-RPi4 RTC AM1805 I2C1 bus, address 0x69
Load:   dtoverlay=iotg-rpi4-rtc
Params: <None>

Name:   iotg-rpi4-tpm
Info:   Compulab IOTG-RPi4 TPM SLB9670 by Infineon over SPI1 bus, CS1
Load:   dtoverlay=iotg-rpi4-tpm
Params: <None>

Name:   iotg-rpi4-dio
Info:   Compulab IOTG-RPi4 Digital inputs and outputs (DIO) extension module
Load:   dtoverlay=iotg-rpi4-dio,<param>
Params: ab                  Configure slot A as output (GPIOs 0-3) and
                            slot B as input  (GPIOs 4-7)
                            (boolean, optional)
        cd                  Configure slot C as output (GPIOs 8-11) and
                            slot D as input  (GPIOs 18-21)
                            (boolean, optional)

Name:   iotg-rpi4-ie-a
Info:   Compulab IOTG-RPi4 IEA extension module
Load:   dtoverlay=iotg-rpi4-ie-a,<param>=<val>
Params: can                 Configure MCP251xFD CAN controller
                            over SPI3 bus, CS0
                            (boolean, optional)
        uart                Configure UART2 on GPIOs 0,1
                            (boolean, optional)

Name:   iotg-rpi4-ie-b
Info:   Compulab IOTG-RPi4 IEB extension module
Load:   dtoverlay=iotg-rpi4-ie-b,<param>=<val>
Params: can                 Configure MCP251xFD CAN controller
                            over SPI4 bus, CS0
                            (boolean, optional)
        uart                Configure UART3 on GPIOs 4,5
                            (boolean, optional)

Name:   iotg-rpi4-ie-c
Info:   Compulab IOTG-RPi4 IEC extension module
Load:   dtoverlay=iotg-rpi4-ie-c,<param>=<val>
Params: can                 Configure MCP251xFD CAN controller
                            over SPI0 bus, CS0
                            (boolean, optional)
        uart                Configure UART4 on GPIOs 8,9
                            (boolean, optional)

Name:   iotg-rpi4-ie-d
Info:   Compulab IOTG-RPi4 IED extension module
Load:   dtoverlay=iotg-rpi4-ie-d,<param>=<val>
Params: can                 Configure MCP251xFD CAN controller
                            over SPI1 bus, CS0
                            (boolean, optional)
        uart                Configure UART5 on GPIOs 12,13
                            (boolean, optional)