diff options
| author | Nick Bowler <nbowler@elliptictech.com> | 2012-11-07 06:20:34 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-11-09 16:38:15 -0500 |
| commit | 56277f40d73f12d9ffb12b5a6bd7e0ad1f2284b3 (patch) | |
| tree | 75e5fe8498c57e8d7863dfd1b0146e5eec04fcb7 /Documentation/ABI/testing | |
| parent | b1ead1aea1d7e3c260d896943056453717577525 (diff) | |
phylib: mdio: Add sysfs attribute for PHY identifiers.
This adds a phy_id sysfs attribute to MDIO devices, containing the
32-bit PHY identifier reported by the device. This attribute can
be useful when debugging problems related to phy drivers. Other
enumerable buses already have similar attributes.
Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-mdio | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-mdio b/Documentation/ABI/testing/sysfs-bus-mdio new file mode 100644 index 000000000000..6349749ebc29 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-mdio @@ -0,0 +1,9 @@ +What: /sys/bus/mdio_bus/devices/.../phy_id +Date: November 2012 +KernelVersion: 3.8 +Contact: netdev@vger.kernel.org +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. |