RP2xxx Backend

Raspberry Pi RP2040/RP2350 Joybus backend. More...

Data Structures
struct	joybus_rp2xxx_data
struct	joybus_rp2xxx
	A RP2xxx Joybus instance. More...

Macros
#define	JOYBUS_RP2XXX(bus)
	Macro to cast a generic Joybus instance to a RP2xxx Joybus instance.

Functions
int	joybus_rp2xxx_init (struct joybus_rp2xxx *rp2xxx_bus, uint8_t gpio, PIO pio)
	Initialize a RP2xxx Joybus instance.

Detailed Description

Raspberry Pi RP2040/RP2350 Joybus backend.

Macro Definition Documentation

JOYBUS_RP2XXX

#define JOYBUS_RP2XXX

(

bus

)

Value:

((struct joybus_rp2xxx *)(bus))

Macro to cast a generic Joybus instance to a RP2xxx Joybus instance.

Function Documentation

joybus_rp2xxx_init()

int joybus_rp2xxx_init	(	struct joybus_rp2xxx *	rp2xxx_bus,
		uint8_t	gpio,
		PIO	pio )

Initialize a RP2xxx Joybus instance.

Parameters

rp2xxx_bus	the RP2xxx Joybus instance to initialize
gpio	the GPIO pin to use for the Joybus data line
pio	the PIO instance to use (eg. pio0 or pio1)

Returns

0 on success, negative error code on failure