other versions
| MDIOBUS_READ_NESTED(9) | Network device support | MDIOBUS_READ_NESTED(9) |
NAME¶
mdiobus_read_nested - Nested version of the mdiobus_read function
SYNOPSIS¶
int mdiobus_read_nested(struct mii_bus * bus, int addr, u32 regnum);
ARGUMENTS¶
struct mii_bus * bus
the mii_bus struct
int addr
the phy address
u32 regnum
register number to read
DESCRIPTION¶
In case of nested MDIO bus access avoid lockdep false positives by using mutex_lock_nested.
NOTE¶
MUST NOT be called from interrupt context, because the bus read/write functions may wait for an interrupt to conclude the operation.
COPYRIGHT¶
| September 2017 | Kernel Hackers Manual 4.12 |