General

General library functions. More...

Classes
struct	lwCollection

Typedefs
typedef usb_dev_handle	littleWire
typedef struct lwCollection	lwCollection

Functions
int	littlewire_search ()
littleWire *	littlewire_connect_byID (int desiredID)
littleWire *	littlewire_connect_bySerialNum (int mySerial)
littleWire *	littleWire_connect ()
unsigned char	readFirmwareVersion (littleWire *lwHandle)
void	changeSerialNumber (littleWire *lwHandle, int serialNumber)
int	customMessage (littleWire *lwHandle, unsigned char *receiveBuffer, unsigned char command, unsigned char d1, unsigned char d2, unsigned char d3, unsigned char d4)
int	littleWire_error ()
char *	littleWire_errorName ()

Variables
lwCollection	lwResults [16]
int	lw_totalDevices

Detailed Description

General library functions.

Function Documentation

void changeSerialNumber	(	littleWire *	lwHandle,
		int	serialNumber
	)

Changes the USB serial number of the Little Wire

Parameters

serialNumber

Serial number integer value (100-99)

Returns

(none)

Definition at line 153 of file littleWire.c.

int customMessage	(	littleWire *	lwHandle,
		unsigned char *	receiveBuffer,
		unsigned char	command,
		unsigned char	d1,
		unsigned char	d2,
		unsigned char	d3,
		unsigned char	d4
	)

Sends a custom message to the device.
Useful when developing new features in the firmware.

Parameters

receiveBuffer	Returned data buffer
command	Firmware command
d1	data[0] for the command
d2	data[1] for the command
d3	data[2] for the command
d4	data[3] for the command

Returns

status

Definition at line 384 of file littleWire.c.

littleWire* littleWire_connect

(

)

Tries to connect to the first littleWire device that libusb can find.

Parameters

(none)

Returns

littleWire pointer for healthy connection, NULL for a failed trial.

Definition at line 136 of file littleWire.c.

littleWire* littlewire_connect_byID

(

int

desiredID)

Tries to connect to the spesific littleWire device by array id.

Parameters

desiredID

array index of the lwResults array.

Returns

littleWire pointer for healthy connection, NULL for a failed trial.

Definition at line 104 of file littleWire.c.

littleWire* littlewire_connect_bySerialNum

(

int

mySerial)

Tries to connect to the spesific littleWire with a given serial number.
If multiple devices have the same serial number, it connects to the last one it finds

Parameters

mySerial

Serial number of the desired littlewire device.

Returns

littleWire pointer for healthy connection, NULL for a failed trial.

Definition at line 118 of file littleWire.c.

int littleWire_error

(

)

Returns the numeric value of the status of the last communication attempt

Parameters

(none)

Returns

Numeric value of the status of the last communication attempt

Definition at line 538 of file littleWire.c.

char* littleWire_errorName

(

)

Returns the string version of the last communication attempt status if there was an error

Parameters

(none)

Returns

String version of the last communication attempt status if there was an error

Definition at line 543 of file littleWire.c.

int littlewire_search

(

)

Tries to cache all the littleWire devices and stores them in lwResults array.
Don't actually connects to any of the device(s).

Parameters

(none)

Returns

Total number of littleWire devices found in the USB system.

Definition at line 60 of file littleWire.c.

unsigned char readFirmwareVersion

(

littleWire *

lwHandle)

Reads the firmware version of the Little Wire
Format: 0xXY => X: Primary version Y: Minor version

Parameters

(none)

Returns

Firmware version

Definition at line 146 of file littleWire.c.