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The first function within the Ethernet PHY API is the PHY driver initialization/Init() function which is called by the Ethernet network interface layer after the MAC device driver is initialized without error.
Files
Every physical layer driver’s net_phy.c
Prototype
Note that since every PHY driver’s Init() function is accessed only by function pointer via the PHY driver’s API structure, it doesn’t need to be globally available and should therefore be declared as ‘static’.
Arguments
pif
Pointer to the interface to initialize a PHY.
perr
Pointer to variable that will receive the return error code from this function.
Returned Value
None.
Required Configuration
None.
Notes/Warnings
The PHY initialization function is responsible for the following actions:
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