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- What: /sys/class/mdio_bus/<bus>/<device>/attached_dev
- Date: May 2017
- KernelVersion: 4.13
- Contact: [email protected]
- Description:
- Symbolic link to the network device this PHY device is
- attached to.
- What: /sys/class/mdio_bus/<bus>/<device>/phy_has_fixups
- Date: February 2014
- KernelVersion: 3.15
- Contact: [email protected]
- Description:
- This attribute contains the boolean value whether a given PHY
- device has had any "fixup" workaround running on it, encoded as
- a boolean. This information is provided to help troubleshooting
- PHY configurations.
- What: /sys/class/mdio_bus/<bus>/<device>/phy_id
- Date: November 2012
- KernelVersion: 3.8
- Contact: [email protected]
- Description:
- This attribute contains the 32-bit PHY Identifier as reported
- by the device during bus enumeration, encoded in hexadecimal.
- This ID is used to match the device with the appropriate
- driver.
- What: /sys/class/mdio_bus/<bus>/<device>/phy_interface
- Date: February 2014
- KernelVersion: 3.15
- Contact: [email protected]
- Description:
- This attribute contains the PHY interface as configured by the
- Ethernet driver during bus enumeration, encoded in string.
- This interface mode is used to configure the Ethernet MAC with the
- appropriate mode for its data lines to the PHY hardware.
- Possible values are:
- <empty> (not available), mii, gmii, sgmii, tbi, rev-mii,
- rmii, rgmii, rgmii-id, rgmii-rxid, rgmii-txid, rtbi, smii
- xgmii, moca, qsgmii, trgmii, 1000base-x, 2500base-x, rxaui,
- xaui, 10gbase-kr, unknown
- What: /sys/class/mdio_bus/<bus>/<device>/phy_standalone
- Date: May 2019
- KernelVersion: 5.3
- Contact: [email protected]
- Description:
- Boolean value indicating whether the PHY device is used in
- standalone mode, without a net_device associated, by PHYLINK.
- Attribute created only when this is the case.
- What: /sys/class/mdio_bus/<bus>/<device>/phy_dev_flags
- Date: March 2021
- KernelVersion: 5.13
- Contact: [email protected]
- Description:
- 32-bit hexadecimal number representing a bit mask of the
- configuration bits passed from the consumer of the PHY
- (Ethernet MAC, switch, etc.) to the PHY driver. The flags are
- only used internally by the kernel and their placement are
- not meant to be stable across kernel versions. This is intended
- for facilitating the debugging of PHY drivers.
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