template <class DerivedType, class IntType, size_t AddrIntSize, class ByteOrder = void, class PrinterState = void>

class I2cRegisterBase

Defined at line 29 of file ../../zircon/system/ulib/hwreg-i2c/include/hwreg/i2c.h

An instance of I2cRegisterBase represents a staging copy of a register,

which can be written to the device's register using i2c protocol. It knows the register's

address and stores a value for the register. The actual write/read is done upon calling

ReadFrom()/WriteTo() methods.

All usage rules of RegisterBase applies here with the following exceptions

- AddrIntSize should match the exact number of bytes used for register addressing.

- ReadFrom()/WriteTo() methods will return zx_status_t instead of the class object and hence

cannot be used in method chaining.

Public Members

static const int AddrSize

template <typename T>

DerivedType & ReadFrom (T * reg_io)

Delete base class ReadFrom() and WriteTo() methods and define new ones

which return zx_status_t in case of i2c read/write failure

Defined at line 46 of file ../../zircon/system/ulib/hwreg-i2c/include/hwreg/i2c.h

template <typename T>

DerivedType & WriteTo (T * mmio)

Defined at line 48 of file ../../zircon/system/ulib/hwreg-i2c/include/hwreg/i2c.h

zx_status_t ReadFrom (const fidl::ClientEnd<fuchsia_hardware_i2c::Device> & client)

Defined at line 52 of file ../../zircon/system/ulib/hwreg-i2c/include/hwreg/i2c.h

zx_status_t WriteTo (const fidl::ClientEnd<fuchsia_hardware_i2c::Device> & client)

Defined at line 92 of file ../../zircon/system/ulib/hwreg-i2c/include/hwreg/i2c.h