phy_read_mmd_indirect (9) Linux Manual Page
phy_read_mmd_indirect – reads data from the MMD registers
Synopsis
int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, int devad);Arguments
phydev
-
- The PHY device bus
prtad
- MMD Address
devad
- MMD DEVAD
Description
it reads data from the MMD registers (clause 22 to access to clause 45) of the specified phy address. To read these register we have: 1) Write reg 13 // DEVAD 2) Write reg 14 // MMD Address 3) Write reg 13 // MMD Data Command for MMD DEVAD 3) Read reg 14 // Read MMD data