LinuxSpi Class Reference

Class implements spi bus for linux via spidev interface. More...

#include <linux_spi.h>

Public Member Functions
	LinuxSpi (int busId, int8_t devId, int8_t dcPin, uint32_t frequency)
	Creates instance of LinuxSpi class, implementing SPI bus for user-space linux apps. More...
void	begin ()
	Initializes spi interface.
void	end ()
	Closes spi interface.
void	start ()
	Starts communication with SSD1306 display.
void	stop ()
	Ends communication with SSD1306 display.
void	send (uint8_t data)
	Sends byte to SSD1306 device. More...
void	sendBuffer (const uint8_t *buffer, uint16_t size)
	Sends bytes to SSD1306 device. More...

Detailed Description

Class implements spi bus for linux via spidev interface.

Definition at line 37 of file linux_spi.h.

Constructor & Destructor Documentation

LinuxSpi()

LinuxSpi::LinuxSpi	(	int	busId,
		int8_t	devId,
		int8_t	dcPin,
		uint32_t	frequency
	)

Creates instance of LinuxSpi class, implementing SPI bus for user-space linux apps.

Parameters

busId	spi bus to use as first number for spidev
devId	spi device number to use as second number for spidev
dcPin	pin to use as data/command mode pin
frequency	frequency to run SPI bus on

Member Function Documentation

send()

void LinuxSpi::send

(

uint8_t

data

)

Sends byte to SSD1306 device.

Parameters

data	- byte to send

sendBuffer()

void LinuxSpi::sendBuffer	(	const uint8_t *	buffer,
		uint16_t	size
	)

Sends bytes to SSD1306 device.

Sends bytes to SSD1306 device. This functions gives ~ 30% performance increase than ssd1306_intf.send.

Parameters

buffer	- bytes to send
size	- number of bytes to send

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The documentation for this class was generated from the following file:

• src/lcd_hal/linux/linux_spi.h