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