Close unexports the GPIO pin.

func (gpio *GPIO) SetPullUpDown(pull PullUpDown) error { file, err := os.OpenFile("/sys/kernel/debug/omap_mux/", os.O_WRONLY, 0660) if err != nil {

ReadUint16Reg is very like ReadUint8Reg; again, data is read from a device, from a designated register. But this time, the data is a complete word (16

WriteUint16Reg is the opposite of the ReadUint16Reg operation. 16 bits of data is written to a device, to the designated register.

ProcessCall selects a device register (through the register byte), sends 16 bits of data to it, and reads 16 bits of data in return.

ReadUint16RegSwapped is very like ReadUint8Reg; again, data is read from a device, from a designated register. But this time, the data is a complete w

ReadUint8 reads a single byte from a device, without specifying a device register. Some devices are so simple that this interface is enough; for other

ReadUint8Reg reads a single byte from a device, from a designated register.

StartEdgeDetectCallbacks starts a thread that calls callback for every detected edge. An error or DisableEdgeDetection stops the thread.

Write data to SPI device.

WriteUint16RegSwapped is the opposite of the ReadUint16RegSwapped operation. 16 bits of data is written to a device, to the designated register. The b

WriteUint8 sends a single byte to a device.

WriteUint8Reg writes a single byte to a device, to a designated register.

CS active high

Disconnects the object from the interface.

Closes the current servo instance

Loop returns the loopback configuration.

NewGPIO exports the GPIO pin nr.

Connects the object to the specified SMBus.

NewSPI returns a new SPI object that is connected to the specified SPI device interface. NewSPI(X,Y) will open /dev/spidev-X.Y SPI is an object type

Position returns the servo position in the range from 0.0 to 1.0

ProcessCallBlock reads a block of up to 32 bytes from a device, from a designated register.

ProcessCallSwapped selects a device register (through the register byte), sends 16 bits of data to it, and reads 16 bits of data in return. The bytes

Read len(data) bytes from SPI device.

TODO: Perform I2C Block Read transaction. With if len == 32 then arg = C.I2C_SMBUS_I2C_BLOCK_BROKEN instead of I2C_SMBUS_I2C_BLOCK_DATA ???

ReadBlock writes up to 32 bytes to a device, to a designated register.

ReadInt16Reg is very like ReadInt8Reg; again, data is read from a device, from a designated register. But this time, the data is a complete word (16 b

ReadInt16RegSwapped is very like ReadInt8RegSwapped; again, data is read from a device, from a designated register. But this time, the data is a compl

ReadInt8 reads a single byte from a device, without specifying a device register. Some devices are so simple that this interface is enough; for others

ReadInt8Reg reads a single byte from a device, from a designated register.

CS active high

SetLoop sets the loopback configuration.

SetPosition sets the servo position in the range from 0.0 to 1.0. position will be clamped if outside 0.0 to 1.0

StartEdgeDetectEvents starts a thread that sends EdgeEvent instances into the events channel for every edge. EdgeEvent contains the time of the event,

WriteBlock selects a device register, sends 1 to 31 bytes of data to it, and reads 1 to 31 bytes of data in return.

WriteInt16Reg is the opposite of the ReadInt16Reg operation. 16 bits of data is written to a device, to the designated register.

WriteInt16RegSwapped is the opposite of the ReadInt16RegSwapped operation. 16 bits of data is written to a device, to the designated register. The byt

WriteInt8 sends a single byte to a device.

WriteInt8Reg writes a single byte to a device, to a designated register.

WriteQuick sends a single bit to the device, at the place of the Rd/Wr bit.

Xfer performs a SPI transaction. CS will be released and reactivated between blocks. delay specifies delay in usec between blocks.

Xfer2 performs a SPI transaction. CS will be held active between blocks.