simplify package structure

i2c/i2c.go

@@ -1,54 +0,0 @@
-// Package i2c enables gophers i2c speaking ability.
-package i2c
-
-import "github.com/kidoman/embd/host"
-
-type Bus 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) Bus
-
-	Close() error
-}
-
-var instance I2C
-
-func Open() error {
-	desc, err := host.Describe()
-	if err != nil {
-		return err
-	}
-
-	instance = desc.I2C().(I2C)
-
-	return nil
-}
-
-func Close() error {
-	return instance.Close()
-}
-
-func NewBus(l byte) Bus {
-	return instance.Bus(l)
-}