include/tpl_drv_joystick.h File Reference

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Detailed Description

Joystick Driver Interface Definitions.

Author:

John Hodge (thePowersGang)

VFS Layout

Joystick drivers define a single VFS node, that acts as a fixed size file. Reads from this file return the current state, writes are ignored.

Structure

The device file must begin with a valid sJoystick_FileHeader structure. The file header is followed by NAxies instances of sJoystick_Axis, one for each axis. This is followed by NButtons boolean values (represented using Uint8), each representing the state of a single button (where 0 is unpressed, 0xFF is fully depressed - intermediate values are valid in the case of variable-pressure buttons)

Go to the source code of this file.

Data Structures
struct	sJoystick_FileHeader
struct	sJoystick_Axis
	Axis Definition. More...
Typedefs
typedef void(*	tJoystickCallback )(int Ident, int bIsAxis, int Num, int Delta)
	Callback type for JOY_IOCTL_SETCALLBACK.
Enumerations
enum	eTplJoystick_IOCtl { JOY_IOCTL_SETCALLBACK = 4, JOY_IOCTL_GETSETAXISLIMIT, JOY_IOCTL_GETSETAXISFLAGS, JOY_IOCTL_GETSETBUTTONFLAGS }
	Common Joystick IOCtl Calls. More...

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Typedef Documentation

typedef void(* tJoystickCallback)(int Ident, int bIsAxis, int Num, int Delta)

Callback type for JOY_IOCTL_SETCALLBACK.

Parameters:

Ident

Ident value passed to JOY_IOCTL_SETCALLBACK

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Enumeration Type Documentation

enum eTplJoystick_IOCtl

Common Joystick IOCtl Calls.

Enumerator:

JOY_IOCTL_SETCALLBACK	Sets the callback. ioctl(..., struct{int Ident;tKeybardCallback *Callback}) Note: Can be called from kernel mode only Sets the callback that is called when a event occurs (button or axis change). This function pointer must be in kernel mode (although, kernel->user or kernel->ring3driver abstraction functions can be used)
JOY_IOCTL_GETSETAXISLIMIT	Set maximum value for sJoystick_Axis.CurState. ioctl(..., struct{int AxisNum;int Value}) Note: If Value is equal to -1 (all bits set), the value is not changed
JOY_IOCTL_GETSETAXISFLAGS	Set axis flags. ioctl(..., struct{int AxisNum;int Value}) Note: If Value is equal to -1 (all bits set), the value is not changed
JOY_IOCTL_GETSETBUTTONFLAGS	Set Button Flags. ioctl(..., struct{int ButtonNum;int Value}) Note: If Value is equal to -1 (all bits set), the value is not changed