Function Prototypes:ttDevIoctlFunc

Table of Contents >> Programmer's Reference >> tfAddInterface

int ttDevIoctlFunc	(
	ttUserInterface interfaceHandle,
	int flag,
	void TM_FAR * optionPtr,
	int optionLen
	);

Function Description

This device driver function is called by tfIoctlInterface() when the user wishes to interact with the device driver from the application.

Parameters

• interfaceHandle

  A pointer to the interface.

• flag

  One or more device specific flags OR'd together. These flags include custom user-defined flags as well as the flags defined for use with tfIoctlInterface().

• optionPtr

  Pointer to a tfIoctlInterface() specific parameter.

• optionLen

  Length of the option.

Returns

• int

  One of the two following values:

  TM_DEV_OKAY: Success

  TM_DEV_ERROR: Error.

Table of Contents >> Programmer's Reference >> tfAddInterface