Linux Kernel
3.7.1
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#include <input.h>
Data Fields | |
__u16 | attack_length |
__u16 | attack_level |
__u16 | fade_length |
__u16 | fade_level |
struct ff_envelope - generic force-feedback effect envelope : duration of the attack (ms) : level at the beginning of the attack : duration of fade (ms) : level at the end of fade
The and are absolute values; when applying envelope force-feedback core will convert to positive/negative value based on polarity of the default level of the effect. Valid range for the attack and fade levels is 0x0000 - 0x7fff