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| MDIOBUS_SCAN(9) | Network device support | MDIOBUS_SCAN(9) |
NAME¶
mdiobus_scan - scan a bus for MDIO devices.
SYNOPSIS¶
struct phy_device * mdiobus_scan(struct mii_bus * bus, int addr);
ARGUMENTS¶
struct mii_bus * bus
mii_bus to scan
int addr
address on bus to scan
DESCRIPTION¶
This function scans the MDIO bus, looking for devices which can be identified using a vendor/product ID in registers 2 and 3. Not all MDIO devices have such registers, but PHY devices typically do. Hence this function assumes anything found is a PHY, or can be treated as a PHY. Other MDIO devices, such as switches, will probably not be found during the scan.
COPYRIGHT¶
| July 2017 | Kernel Hackers Manual 4.12 |