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net: phy: expose PHY device interface mode

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Expose the PHY device interface mode through sysfs since this is an
useful piece of information for knowing how the attached networking
device will have configured its transmit/receive path.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli
2014-02-11 17:27:40 -08:00
committed by David S. Miller
parent 8a2fe56e88
commit 3d055d8d1c
2 changed files with 20 additions and 0 deletions
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10
Documentation/ABI/testing/sysfs-bus-mdio
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@@ -7,3 +7,13 @@ Description:
by the device during bus enumeration, encoded in hexadecimal.
This ID is used to match the device with the appropriate
driver.
What: /sys/bus/mdio_bus/devices/.../phy_interface
Date: February 2014
KernelVersion: 3.15
Contact: netdev@vger.kernel.org
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.