Common Commands

Functions
int	joybus_identify (struct joybus *bus, struct joybus_id *response)
	Identify the target device attached to the Joybus.
int	joybus_identify_async (struct joybus *bus, struct joybus_id *response, joybus_transfer_cb callback, void *user_data)
	Identify the target device attached to the Joybus, asynchronously.
int	joybus_reset (struct joybus *bus, struct joybus_id *response)
	Reset the target device attached to the Joybus.
int	joybus_reset_async (struct joybus *bus, struct joybus_id *response, joybus_transfer_cb callback, void *user_data)
	Reset the target device attached to the Joybus, asynchronously.

Detailed Description

Function Documentation

joybus_identify()

int joybus_identify	(	struct joybus *	bus,
		struct joybus_id *	response )

Identify the target device attached to the Joybus.

Parameters

bus	the Joybus to use
response	buffer to store the identify response in

Returns

0 on success, a negative joybus_error on failure

joybus_identify_async()

int joybus_identify_async	(	struct joybus *	bus,
		struct joybus_id *	response,
		joybus_transfer_cb	callback,
		void *	user_data )

Identify the target device attached to the Joybus, asynchronously.

Calls the provided callback when complete. The response buffer will be populated with a 3-byte response containing the device ID and status.

Parameters

bus	the Joybus to use
response	buffer to store the identify response in
callback	a callback function to call when the transfer is complete
user_data	user data to pass to the callback function

Returns

0 if the transfer was started, a negative joybus_error otherwise

joybus_reset()

int joybus_reset	(	struct joybus *	bus,
		struct joybus_id *	response )

Reset the target device attached to the Joybus.

Parameters

bus	the Joybus to use
response	buffer to store the reset response in

Returns

0 on success, a negative joybus_error on failure

joybus_reset_async()

int joybus_reset_async	(	struct joybus *	bus,
		struct joybus_id *	response,
		joybus_transfer_cb	callback,
		void *	user_data )

Reset the target device attached to the Joybus, asynchronously.

Parameters

bus	the Joybus instance to use
response	buffer to store the identify response in
callback	a callback function to call when the transfer is complete
user_data	user data to pass to the callback function

Returns

0 if the transfer was started, a negative joybus_error otherwise