}
/**
- * input_ff_erase - erase an effect from device
+ * input_ff_erase - erase a force-feedback effect from device
* @dev: input device to erase effect from
* @effect_id: id of the ffect to be erased
* @file: purported owner of the request
/**
* input_ff_free() - frees force feedback portion of input device
- * @dev: input device supporintg force feedback
+ * @dev: input device supporting force feedback
*
* This function is only needed in error path as input core will
* automatically free force feedback structures when device is
#define BUS_GSC 0x1A
/*
- * Values describing the status of an effect
+ * Values describing the status of a force-feedback effect
*/
#define FF_STATUS_STOPPED 0x00
#define FF_STATUS_PLAYING 0x01
*/
/**
- * struct ff_replay - defines scheduling of the effect
+ * struct ff_replay - defines scheduling of the force-feedback effect
* @length: duration of the effect
* @delay: delay before effect should start playing
*/
};
/**
- * struct ff_trigger - defines what triggers the effect
+ * struct ff_trigger - defines what triggers the force-feedback effect
* @button: number of the button triggering the effect
* @interval: controls how soon the effect can be re-triggered
*/
};
/**
- * struct ff_envelope - generic effect envelope
+ * struct ff_envelope - generic force-feedback effect envelope
* @attack_length: duration of the attack (ms)
* @attack_level: level at the beginning of the attack
* @fade_length: duration of fade (ms)
};
/**
- * struct ff_constant_effect - defines parameters of a constant effect
+ * struct ff_constant_effect - defines parameters of a constant force-feedback effect
* @level: strength of the effect; may be negative
* @envelope: envelope data
*/
};
/**
- * struct ff_ramp_effect - defines parameters of a ramp effect
+ * struct ff_ramp_effect - defines parameters of a ramp force-feedback effect
* @start_level: beginning strength of the effect; may be negative
* @end_level: final strength of the effect; may be negative
* @envelope: envelope data
};
/**
- * struct ff_condition_effect - defines a spring or friction effect
+ * struct ff_condition_effect - defines a spring or friction force-feedback effect
* @right_saturation: maximum level when joystick moved all way to the right
* @left_saturation: same for the left side
* @right_coeff: controls how fast the force grows when the joystick moves
};
/**
- * struct ff_periodic_effect - defines parameters of a periodic effect
+ * struct ff_periodic_effect - defines parameters of a periodic force-feedback effect
* @waveform: kind of the effect (wave)
* @period: period of the wave (ms)
* @magnitude: peak value
};
/**
- * struct ff_rumble_effect - defines parameters of a periodic effect
+ * struct ff_rumble_effect - defines parameters of a periodic force-feedback effect
* @strong_magnitude: magnitude of the heavy motor
* @weak_magnitude: magnitude of the light one
*