POESel

Set I2C POE (MUX for poe-chip-selects)

POESel

Shortest form: poes.

Control the Power-over-Ethernet controller select of a reference board: poesel enable, poesel disable, poesel reset, or poesel [<value>] to show or set the select byte. The built-in help spells the second form disble; the shell accepts disable.

This is a utility for Broadcom reference boards. It talks to a named device in the SDK’s I2C device table, on the I2C bus of the switch chip itself. On a SONiC switch the platform’s fans, sensors, EEPROMs and optics are normally handled by the platform drivers on the CPU’s own I2C buses, so the device is usually missing and the command prints POESel: cannot open I2C device lpt3: ….

Unvalidated

drivshell> poesel

Built-in help

Usages:
           poesel enable
                - Enable POE controller.
           poesel disble
                - Disable POE controller.
           poesel reset
                - Reset POE controller.
           poesel [value]
                - show poesel, if value specified, set to that value.