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i2c.go
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i2c.go
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package embd
type I2CBus interface {
// ReadByte reads a byte from the given address.
ReadByte(addr byte) (value byte, err error)
// WriteByte writes a byte to the given address.
WriteByte(addr, value byte) error
// WriteBytes writes a slice bytes to the given address.
WriteBytes(addr byte, value []byte) error
// ReadFromReg reads n (len(value)) bytes from the given address and register.
ReadFromReg(addr, reg byte, value []byte) error
// ReadByteFromReg reads a byte from the given address and register.
ReadByteFromReg(addr, reg byte) (value byte, err error)
// ReadU16FromReg reads a unsigned 16 bit integer from the given address and register.
ReadWordFromReg(addr, reg byte) (value uint16, err error)
// WriteToReg writes len(value) bytes to the given address and register.
WriteToReg(addr, reg byte, value []byte) error
// WriteByteToReg writes a byte to the given address and register.
WriteByteToReg(addr, reg, value byte) error
// WriteU16ToReg
WriteWordToReg(addr, reg byte, value uint16) error
}
type I2C interface {
Bus(l byte) I2CBus
Close() error
}
var i2cInstance I2C
func InitI2C() error {
desc, err := DescribeHost()
if err != nil {
return err
}
i2cInstance = desc.I2C()
return nil
}
func CloseI2C() error {
return i2cInstance.Close()
}
func NewI2CBus(l byte) I2CBus {
return i2cInstance.Bus(l)
}