Samsung Internal API reference  2.0
ioctl.h
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1 
9 #ifndef _SYS_IOCTL
10 #define _SYS_IOCTL
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29 extern int ioctl(int fd, int request, unsigned long data);
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31 #endif /* _SYS_IOCTL */
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ioctl
int ioctl(int fd, int request, unsigned long data)
Manipulates the underlying device parameters of special files.